.NET: Dot Net. Microsoft’s architecture for Internet-based applications, most notably providing a standard way for a program to call another program across the Internet, passing parameters, etc.
/proc file system: Provides access to the state of each process and thread in the AIX1 system.
1.TR.6: A control channel networking protocol for ISDN. Although it is a national standard in Germany it is gradually being replaced by Euro-ISDN.
1/LINK: Software (MVS/VSE) which provides an ATM monitoring, control, and application development and execution environment. Announced May 1991 with the 4780. Withdrawn with support ending September 2001.
10/100/1000 Base-T Ethernet PCI Adapter: A full duplex Gigabit Ethernet adapter for eserver pSeries. Announced October 2000.
10/Plus Association: Partner organization set up by Tivoli and IBM in April 1996 to promote the TME, particularly Release 10 and later, which no doubt is why it’s called what it is. Replaced by an all-encompassing Business Partner Program.
100BaseT: A series of 100 MBps IEEE 802.3 Ethernet standards for twisted pair cables. These include 100BaseTx (100Mbps over two-pair Cat5 or better cable), 100BaseT4 (100Mbps over four-pair Cat3 or better cable), 100BaseT2 (100Mbps over two-pair Cat3 or better cable).
1091: 16-inch, high resolution, color graphics monitor, with a single mode of 1280 x 1024 at 72Hz. Announced September 1992, withdrawn December 1993.
10Base2: LAN cabling standard from the IEEE 802.3 committee. Provides low-cost Ethernet-like LAN on twinaxial cable, at 10MB per second, the maximum segment length being 200 meters.
10Base5: LAN cabling standard from the IEEE 802.3 committee. Provides low-cost Ethernet-like LAN on twinaxial cable, at 10MB per second. The maximum segment length being 500 meters.
10BaseT: LAN cabling standard from the IEEE 802.3 committee, often referred to as the RS-232-C of the 1990s. Provides low-cost Ethernet-like LAN over unshielded twisted pair.
1161: ThinkPad i Series 1200.
1171: ThinkPad i Series 1300.
1-2-3: Lotus spreadsheet for the PC. Spreadsheets were arguably the first killer app for the PC, and many a Chief Financial Officer (CFO) bought a PC just to get one. It was VisiCalc that they were buying in 1981 just before and after the announcement of the IBM PC. But, within 18 months, Lotus 1-2-3 hit the market, initially being given away free, presumably as a beta test. Lotus promised integration, supplying a rudimentary database and word processor to go with their spreadsheet. Not only did 1-2-3 mean Easy As 1-2-3, but referred to the three applications. Before long, no one even remembered the name VisiCalc. 1-2-3/M was a MVS and VM version.
1-2-3/M: An MVS and VM version of the Lotus 1-2-3 spreadsheet. Announced February 1990, developed by Lotus and marketed exclusively by IBM, although why anyone should want to buy such a thing is another matter altogether. Support ended April 1997.
1255: Magnetic character reader for sorting documents used in banking and other applications. All three models were withdrawn February 1988.
128-bit encryption: DES encryption using a 16-byte key that would require 3.4 times 10 to the 38th power attempts to guess. In theory, this would require at least 5.4 times 10 to the 18th power years for 1000 2GHz processors.
1331: IBM DASD, vintage 1962, with removable disks.
1394: High performance serial bus. IEEE 1394 is a 1995 Macintosh/IBM PC serial bus interface standard which facilitates high-speed communications and isochronous real-time data services. Originally called FireWire.
1400: Early IBM processor family for commercial applications. Died out in the mid 1960s.
1403: 1,100 lpm train printer for the mainframe. Withdrawn February 1986.
1416: Interchangeable train cartridge for the 1403 printer. Obsolete.
1443: 240 lpm bar printer for the mainframe. Obsolete.
1520: Hand held scanner. Withdrawn May 1990.
1581: Peripheral storage device. An RS-232 serial interface. Withdrawn August 1989.
1710: Early IBM family of process-control computers. Became extinct in the 1960s.
1750/3750: IBM’s Stored Program Control (SPC) analog PABXs, mainly used for voice, but with limited data capability. Sold throughout the world, with the exception of the USA, where they never received approval for connection to public networks. Obsolete and replaced by 8750/9750/Com300.
1750A: VHSIC space-borne computer module made by IBM.
1Base5: An implementation of the StarLAN IEEE standard on baseband medium at 1MB per second.
2064: The IBM eserver zSeries 900 mainframe computer systems. Model 100 is a Coupling Facility.
2074: The zSeries 900 operator’s console.
2105: Enterprise Storage Server family first announced June 1998. Models support different combinations of Unix, Windows NT, zSeries 900, iSeries 400 and NetWare, including replacement of the 3990.
2205: PS/2 printer. 24-pin dot matrix, 160-193 cps (draft), 53-64 cps (letter quality) with multifont support. Defunct.
2210: Low-end multiprotocol router announced September 1994. Supports NetBIOS, SNA, and APPN over TCP/IP. Uses IBM hardware and Proteon software. ISDN adapter announced mid 1996. Withdrawn October 2000.
2216: IBM multi-access connector. Announced October 1996. Withdrawn October 2000.
2217: Nways multiprotocol concentrator which provides high-speed LAN interconnection across Frame Relay, X.25, or SDLC links, allowing transport of data using various protocols across reliable SNA networks. HPR support added March 1996. Withdrawn March 1998.
2218: 2218 Nways box designed as a migration aid for SNA users wanting to move to Frame Relay. Offers multi-protocol support for SNA/SDLC, bisync 3270, bisync/RJE, X25/QLLC, multi-point async, and other serial protocols; support for IP routing and IPX and Source Route/Transparent Bridging for SNA; and dual NetView/390 and SNMP management agents and corresponding management applications. Bought in by IBM from Sync Research (who originally sold the thing as the FrameNode) in March 1996. Withdrawn March 1999, replaced by the 2210.
2219: IBM Nways Frame Relay switch. Announced April 1996. Withdrawn May 1998.
2220: IBM Broadband Network Switch. Announced June 1994 with ATM support added April 1996. Withdrawn October 2000.
2225: IBM Nways multiservice switch. Announced April 1996. Withdrawn May 1998.
2230: IBM Nways ATM switch. Announced April 1996. Withdrawn May 1998.
2305: Fixed-head drum. Obsolete.
2314: IBM DASD, vintage 1965.
2380/2381: 9-wire impact printers from Lexmark. Announced July 1991. Withdrawn May 1996.
2390/2391: 24-wire 360 x 360dpi impact matrix printers from Lexmark. Announced July 1991 for the PS/1. Withdrawn May 1996.
2440: Half-inch, high-speed, start-stop, reel-to-reel tape unit, mainly for the AS/400 and 9370. Withdrawn January 1992.
2456: IBM scanner announced September 1990. Withdrawn September 1996.
2480: LAN for connecting PCs and data collection devices to an iSeries 400. Initial versions worked at up to 2Mbps in cells 100-300 feet across, using spread-spectrum transmission to minimize interference.
2482: A wireless Portable Transaction Computer (PTC) for use with the AS/400. Announced May 1996. Withdrawn May 1999.
2483: A wireless LAN integrated laser Portable Transaction Computer (PTC). Announced May 1996. Withdrawn May 1999.
2484: An AS/400 wireless LAN industrial portable transaction computer, designed for use in harsh industrial environments. Announced May 1994. Withdrawn May 1999.
2486: AS/400 wireless data collection handheld portable transaction computer. Announced May 1994. Withdrawn May 1999.
2488: Pen-based ruggedized PC for use in field and industrial environments. Announced June 1996.
2489: Ruggedized notebook computer for use in the field and in harsh environments. Announced September 1996. Withdrawn November 1998.
248x: IBM wireless LAN product family. Obsolete.
2493: Portable Transaction Computer (PTC) for use with the 248x wireless LAN family. Announced June 1997. Withdrawn May 1999.
24 x 7: Indication of continuous system availability. The ability to operate 24 hours a day, 7 days a week (alternatively 24 x 365). This is achieved through continuous operations and high availability.
2521: The ThinkPad pen-based system model 700. This was IBM’s first entry into the pen-based computer market. Replaced by the 2523.
2523: The ThinkPad pen-based system model 710T. Withdrawn September 1994.
2524: The ThinkPad pen-based system model 730TE. Withdrawn June 1996.
2600: ThinkPad 310E, 310ED and 315ED.
2608: WorkPad z50 Mobile Companion. PDA announced April 1999 and replaced February 2000 by the ThinkPad 240 (2609) Model 21U.
2609: ThinkPad 240 and 240X PDA-sized laptops.
2720: At one time, a much-rumored replacement for the 3725 front-end processor (FEP). The 3745 is now generally acknowledged as being the real replacement.
2780/3780: IBM batch or RJE terminals, now outmoded as hardware products, but whose protocols continue to survive.
286: Abbreviation for 80286. 32-bit microprocessor chip design from Intel and used by IBM in the PC/AT and some PS/2 models. IBM also used the 286 in autonomous I/O processors in the AS/400. Provided rudimentary paging, enabling the implementation of virtual storage with a lot of coding effort. Introduced in 1982 and replaced in 1985 by the 386 which fully implemented paging.
2944: IBM’s first try at building a channel extender. Obsolete.
3000: IBM application StarterPak family. A package of low-cost S/390 hardware and systems software. Announced September 1997. Withdrawn February 2000.
3044: A channel extender link. An unintelligent single channel using fiber optics, for linking mainframes to peripherals up to about 2km away (it’s limited by timing constraints on the I/O). Up to 4.5Mbytes/second. Outmoded by ESCON. See Fiber optic channel.
3081: IBM processor unit. Obsolete.
3082: The processor controller for the defunct 308x mainframe.
3083: IBM processor unit. Obsolete.
3084: IBM processor unit. Obsolete.
3087: Coolant distribution unit for the 3081, 3083 and 3084 processor units. Withdrawn October 1988.
3088: Multisystem Channel Communications Unit (or Multiple-System Coupling Unit – MSCU). Device for interconnecting processor channels. Announced June 1982. Withdrawn November 1994, but still supported by the latest version of z/VM TCP/IP.
3089: Power unit for 3081, 3083, 3084 and 3090 processors. Withdrawn December 1995, with service discontinued September 1998 for Model 001 and June 2001 for Model 003.
308x: Large mainframe family. Obsolete.
3090: Large water-cooled mainframe family. Obsolete.
3090/ACA/ISCF: See ACA/ISCF.
3092: The processor controller for the 3090 mainframe. Later models (February 1989 on) included such goodies as duplicate components (for resilience), internal disk, and optical disk drives to replace previously mandatory 3370 DASD, and tape drives. On the ES/9000 range the 3092 function is provided by the SCE.
3097: Power coolant and distribution unit for the 3090 and ES/3090 processor units. Withdrawn December 1995.
3101: IBM asynchronous terminal originally superseded by the now obsolete 3164.
3104: Display terminal for the 8100 Information System and 4331 processor. Withdrawn April 1988. See also 43xx.
3112: 12ppm laser printer. Replaced by the 43xx family of printers October 1996.
3115: Processing unit for main and control storage for the S/370 model 115. The 115 was the smallest and one of the last of the S/370 models announced, intended as both an entry model and to replace any S/360 Model 20s where the model 125 was too expensive. Withdrawn June 1981. See also 3125.
3116: 16ppm laser printer for the AS/400, S/370 and S/390. Replaced by the 43xx family of printers October 1996.
3117-9: Image scanners, made by IBM in Japan and originally announced mid 1986.
3125: Processing unit for main and control storage for the S/370 model 125. First came out in the early 1970s and long obsolete. Rarely had more than 200KB of memory.
3130: 30ppm laser printer. Announced January 1995. Withdrawn March 2000.
315x: ASCII terminals with built-in emulations for ten non-IBM terminals (it was the first IBM product that explicitly recognized that there are other vendors out there in the marketplace). Cheap – by IBM standards – and did very well in the market. 3151 replaced by 3153. See also InfoWindow.
3160: InfoPrint 60 printer 60ppm printer announced May 1996 and withdrawn October 2001.
3161-3: Monochrome ASCII terminals (green or ambergold) for basic DP and text applications. All three models were withdrawn between January 1989 and July 1990.
3164: Entry-level color ASCII display station (replaced the 3101). Capable of emulating the 3101 and a number of terminals manufactured by other vendors. Withdrawn June 1996.
3170: InfoColor 70 color printer. Announced October 1995.
3172: MicroChannel-based (MCA) interconnect controller which replaced the 8232 LAN channel gateway, and provided VTAM channel attachment of LANs to mainframes. It also effectively obsoleted the 3737. Includes support for TCP/IP, Ethernet, MAP, TRN, FDDI, and ESCON (using an adapter), and for CTC connection of remote hosts. IBM touts the ESCON connectivity feature as allowing channel connection to a wide range of IBM and other industry standard LANs. June 1992 announcements included 80486 processor and other performance improvements. June 1993 announcements included native ESCON support, faster processor, and more hard disk capacity. HPR support added March 1996. ATM support with the TURBOWAYS ATM Adapter announced September 1996.
3174: IBM cluster controller, originally announced mid 1986. Supports ASCII and 3270-type displays. Can connect to TRN, mainframes, and AS/400, supports 16Mbps TRN, and monitor attached devices. Positioned by IBM as an establishment controller with a much wider range of connectivity (async, Ethernet, TCP/IP, etc) than a standard terminal controller. The channel-attached 3174s announced in September 1990 support ESCON; ISDN adapter was announced January 1991; May 1993, new models were announced, providing more multiprotocol support, and February 1994, the thing acquired Frame Relay, APPN, and remote bridging. All 3174 models had been withdrawn by September 2000, but support is still available. See also 8250, Tokenway.
3174-Peer: RPQ product which enabled PCs to communicate with peer PCs and servers (attached to a Token Ring network) and with host resident data and applications – all over existing coax. Obsolete.
3178: A display unit in the 3270 family. Announced early 1983, and became the standard end-user screen in IBM installations. Obsolete.
3179: Color graphics terminal. Color version of the 3178. Obsolete.
3180: 3270 family monochrome screen. Effectively replaced most of the 3278 (3180/1) and 5251 (3180/2) families of terminals with a lower price, higher function terminal. Most noteworthy feature was its ability to run as any of the four 3270 Models (screen sizes); its programmable key feature allowed single key entry of frequently-used lengthy key sequences. Replaced by the 3206.
3191: Entry model 3270 screen. Withdrawn October 1989.
3192: 15 inch monochrome (black on white) and/or color terminal. Announced February 1988. Withdrawn October 1989 and replaced by the InfoWindow Graphics-5 3472. See InfoWindow.
3193: High-resolution, monochrome 3270-compatible display. Withdrawn January 1992.
3194: High-function TP terminal. Monochrome or color 3270 with integrated diskette drive. Supports windows to up to four host sessions. Available with ASCII support. Withdrawn January 1994.
3196: Twinax attached monochrome (green or ambergold) display for basic DP and text applications. Withdrawn May 1990.
3197: System/3x version of the 3192. Available in color and monochrome versions. Withdrawn October 1989.
3203: 1979 vintage 1,200 lpm train printer for the mainframe that effectively replaced the 1403. Obsolete.
3205: IBM color display console for attachment to 4361 and 4381 processors (43xx) equipped with an Operator Control Panel. Withdrawn January 1994.
3206: IBM Display Station. Announced January 1988. Withdrawn June 1996, although the Model 110 is still supported.
3210: IBM selectric console printer-keyboard. A keyboard and printer unit for the S/370. Obsolete.
3211: 2,000 lpm train printer for mainframes. Obsolete.
3215: Standard datastream for line mode terminals, just as 3270 is standard for full screen mode.
3216: Interchangeable cartridge for the 3211. Obsolete.
3262: Small line printer (launched in 1982) for mainframes. Up to 650 lpm. Replaced by 6252.
3268: Small serial printer (340 cps) in the 326x series. Available in monochrome and color versions. Obsolete.
3270: IBM’s principal family of pretty dumb (functionally challenged), block-mode, synchronous screen and printer terminals, which became an industry standard and the subject of much imitation first from plug-compatible suppliers then PC-based terminal emulation software. The 3270 family includes cluster controllers, displays, and printers.
3270 ASCII Application Access: A VTAM application for MVS and VM that provided access from a 3270 to the non-SNA world by emulating ASCII terminals. Announced March 1996. Withdrawn March 2000.
3270 Bridge: Maps BMS to HTML. Introduced in Version 1.2 of CICS Transaction Server for OS/390, and now a part of CICS Transaction Server for VSE/ESA, as well. A newer LINKable 3270 Bridge allows 3270 transactions to be driven using client ECI, host EXCI calls and DPL or EXEC CICS LINK.
3270 datastream: The format used by the 3270 family of terminals and controllers. An industry standard for communications and much used to make PCs look like dumb terminals.
3270 emulation: The ability of terminal emulation software to replace 3270 hardware, often including printers as well as terminals. See also tn3270.
3270 PC: Obsolete version of the PC which provided workstation facilities. Could run four 3270 sessions, two local notepad sessions, and one PC-DOS session. Pretended to be a 3290 for communications purposes.
3270 PC/AT: More powerful version of the 3270 PC. No longer marketed.
3270 PC File Transfer Program: Part of z/OS.
3271: Original 3270 remote cluster controller using BSC line protocol. Support ended June 1996.
3272: Original 3270 local (channel attached) cluster controller. Responds directly to channel commands, and interrupts the channel for attention. Support ended June 1996.
3274: Range of cluster controllers replacing the 3271 and 3272, and capable of emulating both. Available with various amounts of storage, and local and remote attachment options. Functioned as an SNA PU2, and also supported non-SNA operation. Replaced by the 3174.
3275: Remote BSC screen/printer controller with dial-up facilities. Used as a specialist device for remote operation of 43xx processors. Support ended June 1996.
3276: Hard-wired BSC/SDLC1 integrated screen and controller for small clusters (up to 8 terminals). Obsolete and largely replaced by the 8-port 3274.
3277: Screen (head) for a 3271/3272 controller. Support ended June 1996.
3278: The original monochrome screen (head) for 3274/3276 controller. Obsolete and largely replaced by the 3178 and 3180.
3279: Color screen. Effectively a color version of the 3278. Replaced by the 3179.
3287: Printers for the 3270 family. Obsolete.
3290: User terminal with a large, flat, plasma panel screen (62 x 160 characters) conforming to the 3270 standard; supports multiple sessions, applications, graphics etc. Highly regarded device but horrifically expensive, and was withdrawn early 1989. The 3290 continues to be emulated, particularly its multiple session feature, in a number of third-party products.
3295: 3270-standard plasma monitor. Obsolete.
3299: Multiplexer allowing 3270 family devices to share one coax, fiber optic (ESCON), or IBM Cabling System cable to their controller. A versatile little beast that not only allowed savings in cabling, but also increased the allowable distance between terminal and controller. Ironically, it was the first model announced, -002 in September 1985, that was the last to be withdrawn, in September 2000. All models are still supported.
3330: 1970s IBM DASD. Obsolete.
3340: 1970s IBM DASD. The first using the Winchester technology, but best known for the operator-removable sealed assembly that combined heads and disk pack and was shaped very much like the starship Enterprise. Obsolete.
3350: IBM DASD for mainframes. The 3350 had a capacity of 635Mbytes, and was withdrawn in September 1988.
3363: Optical disk drive for use with PS/2. Uses 200MB removable WORM cartridges. Joint development between IBM and Matsushita/Panasonic. Withdrawn March 1991.
3370: Obsolete and generally unloved DASD for IBM’s mid-range machines. Introduced in 1979, and withdrawn in September 1988.
3375: DASD. Similar to 3370 but with a few extra features to improve availability, data sharing, and performance, most notably a few cylinders with a set of fixed heads dedicated to each. Obsolete.
3380: IBM mainframe DASD. 14 inch form factor (i.e., diameter of disk). The 3380 used thin film heads for the first time, which caused production difficulties and a problematic early life. The original 3380 had a capacity of 1.26Gbytes per spindle and there were numerous options including double and treble densities, and a half density high performance variant. Superseded by the 3390.
3390: High-capacity DASD announced November 1989. Thin film heads, coated 10.8 inch platters, and vastly better environmentals than the 3380 which it replaced. September 1991 IBM announced the 3990-3 which increased capacity by a further 50% for same floor space, and represented a price/capacity improvement of about 23%. In effect replaced by RAMAC2 mid 1994, then withdrawn April 1996. See also 3390-9.
3390-9: DASD (aka Fat DASD or Jumbo DASD) announced in May 1993. Optimized for cost and capacity, not performance, and holds three times as much data as a standard 3390 at about half the cost per megabyte – but still a lot more expensive than tape. Gets its extra capacity from having three logical 3390 tracks per physical track, but rotates at about one-third the speed. Uses thin film disk technology and second-generation MR heads. A cheaper version with fewer heads was announced in September 1993. All models withdrawn December 1996.
3410/3411: Defunct magnetic tape system for the System/38 and small S/370 mainframes.
3420: Magnetic tape subsystem. IBM’s original standard 9-track reel-to-reel tape drive for mainframes. First shipped in late 1973 and sold in large numbers. Usually used with autoloader tape seals that allowed the tape to be mounted on the drive without opening or hand threading of tape. Though its place in the hearts of IBM salesmen has long since been usurped, there are still numerous 3420s – and PCM equivalents – in use. The 3420 hangs on because it is still used as an industry standard for data interchange, a role that IBM had earmarked for the 3480 cartridge.
3422: System/38 and 43xx tape drive bought by IBM from Siemens on an OEM basis. Withdrawn July 1990.
3430: Magnetic tape drive for sub-MVS machines, such as the 4331 and other low-end 43xx machines. Withdrawn December 1989.
3431: Rewritable optical disk drive announced November 1992. Uses ISO/ANSI standard cartridges, and attaches to a PS/2 SCSI port. Withdrawn July 1995.
3440: 4mm 2GB SCSI tape cartridge drive. Withdrawn January 1996.
3445: 8mm 5GB cartridge tape drive. Withdrawn March 1997.
3447: Digital linear tape library for IBM Netfinity and PC server systems. Announced September 1997. Withdrawn December 1999.
3449: 8mm tape library for IBM Netfinity and PC server systems. Announced September 1997. Withdrawn July 2000.
3450: 1/4 inch cartridge drive with SCSI interface. Announced March 1993. Withdrawn September 1997.
3466: Network Storage Manager. Network-attached storage system based on SeaScape architecture. Intended for automated backup and recovery in heterogeneous environments. On-going series of models first announced October 1996, the most recent of which are still available.
3470: The InfoWindow family of displays for the mainframe. Includes monochrome (3471) and color models, and a multi-session model (the InfoWindow Graphics-5) which runs one graphics and five alphanumeric sessions simultaneously and replaced the 3192. More or less the same as the 3477 family of AS/400 displays. Replaced by InfoWindow II, which itself is now obsolete, too.
3471: InfoWindow monochrome mainframe display. Withdrawn January 1992.
3472: InfoWindow workstation. Replaced by the 3482.
3476: InfoWindow monochrome monitor for System/36, System/38 and AS/400. Replaced by the 3486.
3477: The InfoWindow family of displays for the AS/400. More or less the same as the 3470 family of mainframe displays. Replaced by the 3487.
3480: Cartridge tape system. At one time IBM’s main line of 18-track cartridge tape systems for the mainframe and AS/400. Introduced early 1984 to replace the conventional reel-to-reel 3420. July 1989 IBM announced Improved Data Recording Capability (see IDRC) which increased capacity up to five-fold, and transfer rate by up to 70%. 3M took over manufacture of 3480 cartridges from IBM in March 1989. RS/6000 support announced in May 1993. Obsoleted by the 3490.
3481: InfoWindow II display station which replaced the 3471/3472. Itself replaced by the 3482.
3482: InfoWindow II display station. Replaced by the 3483.
3483: Modular display station. InfoWindow II mainframe display station. The last model was withdrawn in August 2000.
3486: InfoWindow II display station which replaced the 3476/3477. Announced September 1992. Withdrawn May 1999.
3487: InfoWindow II display station which replaced the 3477. Announced September 1992. Withdrawn May 1997.
3488: InfoWindow II modular display station. Withdrawn August 1995.
3489: InfoWindow display with printer announced October 1994. The last model was withdrawn May 2000.
3490: Cartridge tape drive announced September 1989 for the AS/400, and October 1989 for the mainframe. It’s a rack-mounted version of the 3480 with which it is fully compatible, although it takes up about half the floor space and has IDRC as standard. Comes with a cartridge loader holding up to 6 cartridges, and supports the ESCON architecture. February 1991 IBM announced the 3490E with 36-track, bi-directional reading/recording, 9Mbyte/sec transfer, bigger buffer, and faster IDRC. SCSI interface announced October 1992, and RS/6000 support in May 1993. More SCSI 3490Es were announced for AS/400 and RS/6000 in February 1994. Obsoleted by the 3590 in April 1995.
3494: Tape library system announced September 1993 for the eserver iSeries 400, zSeries 900 and pSeries. It’s considerably more compact than the Brobdingnagian 3495, and is a genuine competitor (albeit a belated one) to the StorageTek ATLs. Virtual Tape Server (VTS) models were first announced September 1996.
3495: Tape Library DataServer. IBM ATL announced May 1992. Consists of a row of tape transports (up to 64) and a robot which scuttles up and down on rails feeding the drives with 3490-type cartridges. Supported by ESCON and DFSMS. When it was announced pundits reckoned it was too late, too big, and a touch over-engineered. The market seemed to agree; by mid 1994 sales were under 200 systems, compared to StorageTek’s 6,600. Withdrawn April 1998, though still supported by current operating systems. Most models were replaced by the 3494. See also BTLS.
3499: IBM labeled and initialized data cartridges for the 3480 and 3490E. Announced October 1997.
3509: ISA external CD-ROM drive. Withdrawn March 1994.
3510: CD-ROM drive. Announced March 1990. The most recent model is still available.
3511: PS/2 external storage enclosure. A floor standing expansion unit for SCSI devices, originally announced October 1990, with the most recent model still available.
3514: High availability disk array for RS/6000. Provides RAID 0 data striping, and RAID 5. Withdrawn September 1995.
3515: Disk subsystem for the PS/2. Withdrawn June 1995.
3517: SCSI storage enclosure. External disk drive and media options for the IBM PC server system. Lockable door expansion chassis with two 5.25 inch half height media bays and five option hot-swap disk drive bays. Announced January 1996. Withdrawn November 1999.
3518: PC server enterprise expansion enclosure with 20 media bays. Announced January 1996. Withdrawn November 1999.
3519: PC server rack storage expansion enclosure. Contains hot-swap drive bays. Announced May 1997.
3520: Netfinity EXP10 storage expansion unit. External, rack mountable data storage unit, with hot-swap drive bays. Announced September 1997. Withdrawn June 2000.
3527: SSA entry storage subsystem for PC servers. A stand-alone enclosure for IBM’s Serial Storage Architecture hard disk drives. Announced June 1997. Withdrawn November 1999.
3532: PS/2 2.3GB external SCSI tape drive. Withdrawn March 1994.
3541: PS/2 communication Cartridge. Withdrawn March 1993.
3570: Magstar MP (multipurpose) magnetic tape subsystem for the AS/400 and RS/6000. Announced September 1996.
3575: Magstar MP (multipurpose) Tape Library Dataserver, a family of SCSI-attached Magstar tape library systems aimed at midrange open systems and network servers. May be used stand-alone or attached to the 3466 Network Storage Manager. Announced June 1997.
3590: The stand-alone tape drive announced April 1995 which uses the Magstar tape mechanism. Initially launched as a single drive, and as a mini-library with a ten-slot cartridge loader using a new random-access mode of operation. Comes in both mainframe and mid-range versions and is positioned as the replacement for the 3480 and 3490/90E devices. Can be channel attached, ESCON attached, and installed in 3494 and 3495 libraries.
3591: Tape Control Unit, which attaches Magstar 3590 tape subsystems to System/390 ESCON channels at 17MBytes per second. Has four logical channels and emulates 3490E. Announced March 1996. Replaced, in April 1998, by a 3590 model with built-in tape control unit.
3599: Magstar 3590 data cartridges. Announced March 1997.
360: The one that started it all in April 1964. The System/360 (S/360) was IBM’s first general purpose mainframe, and the architectural principles used in the 360 live on in the IBM mainframe architecture. Why 360? To denote a full circle, 360 degrees, indicating the then-revolutionary approach of having one machine architecture for both scientific and business computing.
3603: Defunct terminal attachment unit. Withdrawn November 1987.
3604: Defunct display.
3612: Printer for the 3600 or 4700 Finance Communication System. Withdrawn June 1983.
3624: IBM cashpoint (hole in the wall/ATM) machine. Official IBMspeak is Consumer Transaction Facility. Withdrawn January 1990. See 473x.
370: Generic term for a generation of IBM’s mainframe architecture. Less commonly: System/370 (S/370). The number 370 was meant to imply 360 for the 1970s. Models with 370 architecture include 370/xxx, 9370, 43xx, 303x, 308x, 3090. Replaced first by System/390, then the eserver zSeries 900.
3704: Smaller version of the 3705 FEP – obsolete but still in use.
3705: Small IBM computer customized for use as a communications FEP supporting physical management of the network. Also usable as a remote communications controller or network node in multi-system environments. Control software is NCP for SNA networks and EP for pre-SNA networks. Obsolete – replaced by the 3725 FEP.
3708: Network conversion unit (IBMspeak for a protocol converter) for converting ASCII and SDLC1/3270. Also acts as a multiplexer to support line concentration. Withdrawn December 1993.
370 Accommodation: A VM/ESA and z/VM function that allows most 370 mode software to run in XA1 or XC mode. Useful given that recent hardware no longer supports 370 mode operation.
3710: Network controller for concentrating PU2 nodes onto an FEP with some protocol conversion (up to 31 lines). Withdrawn September 1987.
3720: Low-end communications FEP, compatible with the 3705/3725 FEP family. Introduced May 1986, withdrawn September 1990.
3721: Expansion unit for 3720. Withdrawn September 1990.
3725: Enhanced and more powerful version of the 3705 communications FEP. Obsolete – replaced by 3745.
3727: Operator console for the 3745. Withdrawn December 1988.
3728: Matrix switch (60 x 60), located between controller and modems, for assigning traffic to leased lines. For use with IBM FEPs. Can be used to configure, reconfigure, monitor, and test large networks. Controllable remotely using MSHF. Withdrawn September 1994.
3730: Long-dead IBM office automation system based on 3790 hardware. Never really took off, and was superseded by the 8100 with DOSF, which itself bit the dust without making any real impact on the world.
3732: Defunct display.
3737: Remote channel-to-channel unit. Enables mainframe-to-mainframe links at speeds up to 2MB/second over high-speed T1 communications lines. Usable with up to 12 processors. Able to work with NetView. Fairly limited range of facilities – no dynamic reconfiguration, CPU to CPU only (it can’t be used as a channel extender for peripherals), only supports one link at a time. Withdrawn February 1993. See also Channel extender.
3745/6: IBM FEPs announced in January 1988. Enhancements June 1991 included Ethernet board, LAN router/bridge, TCP/IP, and Frame Relay. An entry level model was introduced in March 1992, APPN and ESCON connectivity in September 1992, and Frame Relay in May 1994. October 1994, the 3746-900 was announced with the promise of a successor machine that would be able to run without the use of NCP (see Nways 950). See also 3765.
3765: At one time a rumored replacement for the 3745, which would support large numbers of high-capacity lines – FDDI and 16Mbps TRN, T3 (see T1), Frame Relay, and ESCON. The development of the router market pretty much put the kibosh on it. See Nways 950.
3767: Defunct hard copy (typewriter) terminal. The model number is still used to refer to a particular type of very dumb terminal.
3770: SNA, and sometimes BSC, compatible family of RJE/batch terminals. The boxes are obsolete but the 3770 protocol is used for high-speed print applications because it’s able to do file transfers up to 20 times faster than conventional 3270 systems.
3777: BSC RJE terminal. Withdrawn April 1990.
3780: See 2780/3780. Withdrawn February 1986.
3790: Outmoded IBM distributed processing system, vintage early 1980s. One of IBM’s less successful products and now largely forgotten. Superseded by the 8100 (since superseded by the System/36, since superseded by the 9370, since superseded by the AS/400, since superseded by the eserver iSeries 400, and/or networked PCs).
37xx: Any or all of the 3704, 3705, 3720, 3725, 3745/6 family of communication controllers, also known as FEP.
3800: Extremely fast (up to 215 pages per minute), 240 x 240dpi, laser/electrographic, mainframe-attachable printing subsystem. Typically used where print requirements exceeded 1 million feet/month, and sub-correspondence-quality print was acceptable. Model 1 was announced way back in 1975, and it was progressively and regularly updated until it was withdrawn from marketing March 1991. The replacement, the 3900, was announced October 1990.
3803: Control unit for 3420 magnetic tape units. Withdrawn January 1988.
3812: IBM page printer, announced mid 1986. Prints at 12 pages per minute, and uses LED technology. Withdrawn October 1991.
3814: Switching Management System. Provides automated switching of control units and processor channels. Withdrawn November 1991.
3816: IBM 24ppm, APA, 240 x 240dpi, desktop AFP page printer based on LED technology. Attachable to PC, or to System/3x or AS/400 (using twinax). Replaced by the 3930, and withdrawn March 1994.
3820: IBM page printer. 240 x 240dpi resolution. Supports AFP. Up to 20ppm. September 1992 was no longer available new, but IBM would sell you a new or refurbished one if you asked nicely. Finally withdrawn January 1994.
3825: 58ppm APA (240 x 240), cut-sheet laser printer. 240 x 240dpi resolution. Supports AFP. Originally announced April 1989, with the ability to print IOCA or GOCA formats announced October 1990. Withdrawn August 1995.
3827: 92ppm cut-sheet printer based on the Kodak 1392 LED print engine. 240 x 240dpi resolution. Supports AFP. Initially had a poor reputation for reliability, although eventually got better. Withdrawn August 1995.
3828: IBM MICR printer. Channel-attached, cut-sheet, 92 impressions per minute, 2 million impressions per month. It’s basically the 3827 with MICR capability. Announced October 1990. Withdrawn October 1999.
3829: Channel-attached IBM/Pennant AFP printer, announced June 1993. Uses a 14 inch LED print head, and has facilities for duplex printing. Does up to 92ppm. Withdrawn May 1997.
3830: Storage control unit. Withdrawn November 1986.
3833/4: IBM microprocessor-based modems operating at 2400 bits/second on leased lines. Obsolete.
3835: 88ppm IBM continuous stationery page printer OEMed from Hitachi. 240 x 240dpi resolution. Supports AFP. Channel-attached to the mainframe. Ability to print IOCA or GOCA formats announced October 1990, and a MICR interface announced October 1990. Withdrawn September 1997.
3848: Cryptographic unit. Provided data encryption capabilities for file and communications applications. Withdrawn September 1991.
3851: Mass storage system with a jukebox-type mechanism to handle special data cartridges. Capable of holding huge amounts of data. Introduced in the early 1970s. Not a success and was withdrawn in November 1986. The rights were sold to Masstor which repackaged and remarketed it as the M960.
3852: Color ink-jet printer. Withdrawn May 1988.
386: Abbreviation for 80386. 32-bit microprocessor chip design from Intel. Introduced in 1985, though it took a few years until the price dropped sufficiently for really large sales numbers. IBM started making its own 386s under license from Intel in mid 1988. Replaced by the 486.
3863: IBM microprocessor-based modem operating at 2400 bits per second. Withdrawn May 1987.
386SLC: October 1991 IBM-built version of Intel’s 386SX.
386SX: Abbreviation for the 80386SX. Version of the Intel 386 which used 32 bits internally but 16 bits externally (the rest of the machine thinks it’s talking to a 286). IBM announced its own 386SXs in October 1991 – 386SLC.
386x: IBM modems now obsolete.
3880: Storage controller. IBM’s original cache controller for 3380 and 3350 DASD. A relatively unsophisticated and expensive device, but its replacement by the 3990 was delayed by early technical problems with the latter. Finally withdrawn April 1989.
389x: The Model XP document processors. The 3892 is a microfilm processor, the 3897 is an image capture unit, and the 3898 is an IPRS (Image Processor Recognition System). Used as part of IBM’s cheque handling (see HPTS) and DIP products. Withdrawn except for a newer model of the 3897.
390: See System/390.
3900: APA, non-impact, 240dpi mainframe printing subsystem announced October 1990. Uses a Hitachi print engine. About 7% faster and much smaller than the venerable 3800 which it replaced. It does up to 229 impressions per minute (an impression is the same as a page), and up to 5.6 million standard 8 inch forms per month. The 3900 Advanced Function Printer with Enhanced Print Quality was announced in February 1994, and included various options to produce better quality print. Withdrawn August 1997. Replaced by the 4000.
3912: 12ppm, 600dpi page printers for connection to mainframe, AS/400, and LANs. Withdrawn December 1995.
3916: Multifunction, table-top, 16ppm page printer for mainframe and AS/400. Introduced September 1993. Replaced the 3816. Withdrawn December 1995.
3930: Multifunction, table-top, 30ppm page printer for mainframe, AS/400, and RS/6000. Introduced September 1993. Replaced the 3816 and replaced by the 3130 June 1996.
3935: Printer from Pennant Systems, announced mid 1993. 35ppm, and uses a Xerox print engine with a RISC-based controller. LAN attachable via TRN, TCP/IP, or Ethernet. Replaced by the 3130 April 1996.
3990: DASD storage controller announced in 1987. Offered a series of enhancements over the 3880 (which it replaced), particularly in the top-end models, including Fast Write, Dual Copy, and very large cache. Models 2 and 3 support the ESCON architecture. Enhancements in May 1992 included concurrent copy, sequential data striping, dynamic cache management, and enhanced fast dual copy. May 1993 the 3990-6 was announced with CMOS logic, more logical connections (from 4 to 32 LPARs), more non-volatile storage (to improve DASD Fast Write), and lots more cache (which is particularly helpful for IMS); March 1994 3990-6 enhancements included Remote Copy, record level caching. March 1996 3990-6 enhancements included XRC, PPRC, and support for 3380 formats. June 1996 the thing gained Sequential detect. Replaced by the 2105.
3995: The Compact Optical Library Dataserver. Optical disk system originally announced May 1991 as a replacement for the 9246/7. Available in both fully rewritable and WORM1 forms. March 1993, increased capacity models announced; May 1993, models which emulate the 3390 disk were announced. ESCON support became available early 1994. The mainframe models cost about one half to one fifth of the price of conventional DASD but perform much worse, although some of the performance problems inherent in writing to optical disk are mitigated by staging data via a conventional magnetic DASD. February 1994, a raft of new models for the AS/400 and RS/6000 were announced. Cartridges are interchangeable with the 7209. SCSI-2 models were introduced in March 1996. Today, there are four distinct families of 3995: zSeries 900, iSeries 400, pSeries and LAN-attached. See also IAFC.
4000: InfoPrint 4000 printer. Several families of very high speed laser printers that began with the 3800 in 1975, and saw the 4000 replace the 3900 in October 1996. So fast, in fact, that paper is supplied on rolls because it would take longer to load a box of paper than it would take to print. Speeds as high as 1,002 ips (impressions per second, where each side of a page is an impression).
4004: Intel’s first microprocessor, released in 1971. Powered the Busincom calculator. Replaced by the 8008 in 1972. Ran at 108KHz.
4005: InfoPrint Hi-Lite color printer. Used to selectively highlight important areas of billing statements, contracts, and insurance policies. Announced May 1997.
4019: The IBM LaserPrinter. Withdrawn January 1994.
4028/9/1: Version of the 4019 LaserPrinter for attachment to the AS/400 and to 3270 controllers. Withdrawn December 1995.
4029: Family of laser printers announced October 1991. Built by Lexmark and sold by IBM. Up to 600 x 600dpi (using the LexRes technology), and 4-10ppm. Withdrawn June 1993.
4033: LAN interface (October 1991) developed by Lexmark and sold by IBM. Connects 4029 printers to an Ethernet or TRN LAN. Withdrawn January 1996.
4035: Lexmark WinWriter 600 printer which incorporates Microsoft Windows printing system. Withdrawn June 1996.
4037: Desktop page printer with a maximum output of 5ppm. Withdrawn January 1996.
4039: Lexmark LaserPrinter. Withdrawn June 1996.
4049: Lexmark Optra family of desktop printers. Withdrawn March 1996.
4055: InfoWindow display. Touch screen system based on a PC with optional CD-ROM videodisk player and special screen. Designed mainly for training, product merchandizing, public information services, etc. Withdrawn January 1992.
4070: 360 x 360dpi Lexmark ink-jet printers launched in June 1992. Withdrawn January 1994.
4072: The ExecJet printer. A wide carriage 64 nozzle letter quality ink-jet printer. 360 x 360dpi, 150-600 cps, 18 fonts. Replaced by the ExecJet II – the 4076. But not actually withdrawn until April 1996, along with the 4076.
4076: Lexmark ExecJet II monochrome ink-jet printer. Withdrawn April 1996.
4077: Lexmark WinWriter color ink-jet printer. Withdrawn June 1996.
4079: Lexmark color ink-jet printer announced October 1992. Withdrawn May 1996.
40-bit encryption: DES encryption using a five-byte key that would require 10 to the 12th power attempts to guess. Possible in a reasonable time with today’s computers. Until recently, the most secure form of DES that could be exported outside the US and Canada.
4100: A junior version of the 4000 printer family, with maximum speed of 762 impressions per minute (ipm). Two sets of models, labeled Premium Quality and High Quality. Maximum page width is 19.5 inches. With the Signature Page feature, page length can be 54 inches. Connects via TRN, 10/100/Gigabit Ethernet, FDDI, S/370 channel, ESCON and FICON. Supports PSF in z/OS, z/VM, VSE/ESA and iSeries 400 environments, and Infoprint Manager in AIX and Windows NT/2000/XP environments. Announced July 2001.
4201/2/7/8/12: Proprinter matrix printers for use with PCs. 4202 has a wide carriage. 4207/8 are 288 cps, 24-wire printers for use with PCs. Obsolete.
4210: 200 cps matrix printer for twinax attachment to System/3x and AS/400. Withdrawn March 1992.
4214: Medium-speed printer. 30 cps, near letter quality, draft at 200 cps. Obsolete.
4216: Personal Page Printer and Personal Page Printer II. 6ppm high quality (300 x 300dpi) desktop laser/electrographic printer. Uses a Ricoh engine. The Personal Page Printer II is PostScript compatible. Withdrawn October 1991.
4224: 50-600 cps wide carriage, bi-directional matrix printer. Color available. IPDS compatible. Withdrawn June 1995.
4226: Heavy duty, unattended, serial matrix printer, vintage October 1991. Up to 533 cps. Built by Lexmark, and sold by IBM. Withdrawn May 1996.
4230: Family of AFP serial, impact, dot-matrix printer. 375/480 cps. Originally for the AS/400, but mainframe versions announced February 1993. All 12 models are still available.
4232: Heavy duty, unattended, 600 cps, impact matrix printer for connection to mainframe, AS/400, RS/6000, and PS/2. Introduced September 1993.
4234: 200-800 lines per minute, dot-band, floor-standing printer for twinax (System/3x or AS/400) or coax (3174/3274) attachment, or serial/parallel attachment to the 9372, RS/6000, PC, PS/2, or RT PC. Withdrawn May 1994. Replaced by the 6408.
4245: 2,000 lpm, 1983-vintage band printer for attachment to 3274, 4700, and mainframe (channel attachable), or System/3x. More or less replaced by the 6262.
4247: Heavy duty serial impact matrix printer capable of printing at speeds up to 700 characters per second. Announced September 1995 with the most recent model still available.
4248: High-speed (up to 4000 lpm) print-band printer for channel attachment to mainframe. Withdrawn December 1992.
4250: High resolution (600 PEL per inch), 92 cps, APA electro-erosion printer for publishing applications. Introduced in 1983, and long since withdrawn from marketing. It’s estimated that just 75 were sold, mainly because it was a professional printer’s/compositor’s tool, but was being sold to DP people.
4303: Network Color Printer. Included Adobe PostScript capabilities. Announced June 1996. Withdrawn October 1999. See also Network Printer.
4312: Network Printer 12. Laser printer with a maximum output of 12 ppm. Announced June 1996. Replaced by the 4912 in December 2000.
4317: Network Printer 17. Laser printer with a maximum output of 17 ppm. Announced June 1996. Replaced by the 4322 September 2000.
4322: Infoprint 21. A laser printer so named because of its 21 ppm speed, replacing the 4317. Announced April 2000, withdrawn with no replacement September 2001, but supported until September 2006.
4324: Network Printer 24 and 24PS. Laser printers with a maximum output of 24 ppm. The 24PS has PostScript capabilities. Announced June 1996. Replaced by the 3130 in June 1998.
4332: Infoprint 32/40. Announced August 1998. Withdrawn September 2001.
4370: InfoPrint 62 continuous forms printer. All points addressable, electrophotographic printers available in 240 or 300 dpi. Announced May 1997.
4391: Widely-used name for the successor to the high-end 43xx – also known as Cortina or Harmony. Eventually appeared as the mid-range ES/9000 – the 9121.
43xx: IBM’s family of small to medium mainframes. Includes 4321, 4331, 4341, 4361, 4381, and many incarnations thereof. Only the 4381, which replaced the 4341, was still around by 1990, but it too disappeared soon thereafter.
4520: Infoprint 1120. Monochrome 1200 dpi laser printer with a maximum speed of 20 ppm. First page out speed is 9 seconds. Connect to TRN, Ethernet, twinax and coax, and have an IPDS option. Announced June 2001.
4525: Infoprint 1125. Monochrome 1200 dpi laser printer with a maximum speed of 25 ppm. First page out speed is 9 seconds. Connect to TRN, Ethernet, twinax and coax, and have an IPDS option. Announced June 2001.
4530: Infoprint 1130. 30 ppm laser printer. Announced June 2001.
4540: Infoprint 1140. 40 ppm laser printer. Announced June 2001.
4545: Infoprint 1145. 45 ppm laser printer. Announced June 2001.
457x: Processors in the System/88 product line.
458x: The peripherals for the System/88 product line.
459x: Processors in the System/88 product line (announced September 1988).
4612: The Sure Point Mobile Computer. A pen-based handheld wireless PC for POS applications, announced June 1996 and withdrawn by the end of 1997.
4614: The SureOne point of sale terminal. Announced January 1996.
468x: IBM point-of-sale system announced 1986. Includes the 4684 system and the 4683 terminal which runs under PC-DOS. In June 1990 IBM promised all sorts of additional functions including frequent shopper awards – whatever they might be. September 1990, IBM announced a multi-user environment, and X.25 and LU6.2 support. Programmed using Retail Workbench/2. Superseded by the 469x.
469x: POS terminal family based on the MicroChannel PS/2 and running under OS/2, PC-DOS, or FlexOS when originally announced in June 1993. Superseded the 468x and continues to be updated technologically as new models are offered.
4700: Series of specialized terminals for banks and financial institutions. Obsoleted in September 1993, when 4700 emulation on a PS/2 was announced.
4708: Disk unit. Obsolete.
4712: Transaction printer. Dot matrix printer designed to print on the forms used in financial teller applications. Announced November 1987. Withdrawn April 1999.
4715: Continuous forms printer. Withdrawn August 1988.
4722: Specialized document printer for passbook applications. Incorporates magnetic strip reader/encoder. Withdrawn December 1996.
473x: Personal Banking Machine (hole-in-the-wall machine/ATM to mere mortals). See Consumer Transaction Facilities.
4753: Network Security Processor built around Intel type chips. Provides DEA/DES cryptographic support and uses special packaging to defeat electromagnetic, chemical, and physical attacks on cryptographic keys and sensitive data. (How do you mount a chemical attack on a cryptographic key?) You also need the 4753 z/OS support program on the mainframe. Enhanced January 1993 with data scrambling, key distribution management, and session-level encryption. Part of TSS. Withdrawn June 2000.
4754: Security Interface Unit. Provides security of access to PS/2s and PCs. Comprises a reader for your IBM Personal Security Card, 12-key keypad, and gives access to optional signature verification feature on the 4755. Can also be used to set or change 4753 functions. Part of TSS. Withdrawn June 2000.
4755: Cryptographic Adapter for use with the 4754 Security Interface Unit. Includes signature verification feature which measures signature dynamics (acceleration and pressure) rather than signature shape. Part of TSS. Obsolete.
4758: PCI Cryptographic Coprocessor. Programmable PCI bus card with Data Encryption standard (DES) and RSA cryptographic processing. The cryptographic processes are performed within a secure enclosure on the card. This allows Secure Electronic Transactions (SET) to be executed within the enclosure. Designed to work with security sensitive applications such as IBM’s CommercePoint Payment system to enable processing of large volumes of Internet transactions at high speed. Available for z/OS, AIX, OS/400, Windows NT/2000 and OS/2. Announced June 1997.
4770: The IJ transaction printer. There are two models featuring serial and parallel interfaces. Announced June 1993. Withdrawn November 2000.
4772: Universal Financial Printer. High quality dot-matrix printer designed for the financial services industry. Announced April 1994. Withdrawn December 1996.
4779: Hybrid SmartCard device. As IBM succinctly notes it is an end user activated device supporting client identification for electronic processing of financial transactions. Intended for both SmartCard and magnetic stripe applications. Announced August 1996. Withdrawn December 1999.
486: Abbreviation for the 80486, also known as the i486. 32-bit microprocessor chip family from Intel introduced in 1989 with built-in math coprocessor. Replaced the 386 and replaced by the Pentium. A low end 486SX was also introduced, forcing the renaming of the standard 486 to 486DX. Typical description of a particular chip would be 486DX/33, where the 33 indicated a 33MHz processor speed.
4863: PCjr color display. Withdrawn January 1989 but still available on the used market (eBay).
4912: Infoprint 12. A 12 ppm printer that replaced the 4312. Withdrawn October 2001.
495x: Processors in the Series/1 product line.
496x: The peripherals for the Series/1 product line.
4973: Line printer. Withdrawn October 1986.
4974: Serial printer. Withdrawn October 1986.
4975: Serial printer. Withdrawn October 1986.
4982: Sensor and I/O subsystem for Series/1. Withdrawn December 1989.
4987: Programmable communication subsystem for Series/1. Withdrawn February 1991.
4990: Communication console. Withdrawn February 1991.
4993: Channel transmission enclosure. Withdrawn February 1991.
4994: ASCII device control unit. Withdrawn February 1991.
4997: Rack enclosure for Series/1 units. Withdrawn February 1991.
4GE: Fourth Generation Environment.
4GL: Fourth Generation Language. Generic term for a high-level language/system – often end-user oriented – for creating application systems. Often used synonymously with application generator.
5080: CAD/CAM/CAE graphics display system, components of which are numbered 508x. Replaced by the 6090 in October 1989.
5103: Printer. Withdrawn March 1983.
5144: PC convertible monochrome display. Withdrawn August 1989.
5145: PC convertible color display. Withdrawn August 1989.
5150: The original PC. Withdrawn March 1989.
5151: Monochrome 3270 compatible monitor. Withdrawn June 1992.
5154: Color 3270 compatible monitor. Withdrawn November 1989.
5155: The portable PC. Functionally equivalent to the 5150. Withdrawn April 1986.
5159: Programmable asynchronous I/O and communications controller for the AS/400 – vintage 1992. Attached up to four asynchronous devices, and was promoted mainly for CIM applications.
5160: The PC/XT family. Withdrawn February 1989.
5167: Monochrome display for the PC AT. Withdrawn May 1988.
5169: Quietwriter printer for the PC AT. Withdrawn May 1988.
5170: The PC/AT family. Withdrawn March 1990
5170-495: A low-cost Series/1 computer based on the PC/AT. Used as a store controller. Defunct.
5173: PC Network baseboard extender connecting PCs and PS/2s to the IBM Baseband network. Announced April 1987. Withdrawn March 1998.
5178: PC Network broadband translation unit. Announced April 1987. Withdrawn February 1993.
5183: Lexmark portable printer. Withdrawn September 1993.
5201: The low-end Quietwriter. Non-impact printer (40 to 60 cps) for letter quality text and APA graphics. Withdrawn December 1990.
5202: The Quietwriter. Non-impact thermal ribbon printer (up to 274 cps) for letter quality text and APA (240 x 360dpi) graphics. Withdrawn December 1992.
5204: Quickwriter. 24-wire dot matrix printer. 188 cps (NLQ) or 396 cps draft, or 66 cps for – only IBM could invent this – executive quality letter printing. Withdrawn December 1991.
5208: ASCII-5250 protocol converter for use with System/38 or AS/400. Enables up to seven ASCII devices to connect using twinax. Withdrawn October 1992.
5209: 3270-5250 protocol converter for use with AS/400. Allows 3270 devices to hot-key between mainframe and AS/400 applications. Withdrawn November 1994.
5210: 60 cps printwheel printer for mainframe attachment. Withdrawn February 1989.
5214: 200 cps matrix printer for the System/36. Obsolete.
5216: Printwheel printer for PCs. Withdrawn July 1987.
5218: Printwheel printer for 6580 Displaywriter System. Withdrawn December 1987.
5219: 24-60 cps daisy wheel printer for attachment to System/3x and AS/400. Withdrawn February 1989.
5223: Wheelprinter for PCs. Withdrawn May 1988.
5224: 30-560 lpm matrix printer for the System/3x and AS/400. Withdrawn October 1987.
5225: Matrix printer for System/3x and Series/1. Withdrawn October 1987.
5231: Control unit for 5230 data collection system. Withdrawn January 1990.
5250: Terminal family developed for IBM’s family of small business computers (e.g., System/3x). Very similar to 3270.
5251: Display station for System/3x and AS/400. Withdrawn November 1986.
5252: Dual display station. Withdrawn May 1982.
5253: Display station. Withdrawn April 1990.
5256: Printers in the 5250 family (40 to 120 cps). Withdrawn January 1988.
5259: Migration Data Link. Stand-alone device providing twinax cable path between an AS/400 and a System/36 or System/38. Designed as a migration aid. Withdrawn November 1994.
5262: 650 lpm impact line printer for use with Series/1, System/3x, and AS/400. Replaced by 6252 in March 1991. Finally withdrawn May 1992.
5271: See 3270 PC. Withdrawn June 1988.
5291: Monochrome terminal for direct attachment to a System/3x controller, or via a 5251 or 5294. Withdrawn August 1986.
5292: Color version of the 5291. Withdrawn November 1986.
5294: Remote controller providing network attachment between 5250 devices and a System/36 or System/38. Replaced by the 5394. Withdrawn November 1988.
5299: Telephone twisted pair adapter for the System/38. Announced October 1987. Replaced by 7299 in February 1998.
5308: ASCII to 5250 connection. Announced September 1996. Withdrawn December 1999.
5321: Magnetic card input/output for System/32. Withdrawn April 1990.
5363: The last member of the System/36 family. The 5363 resolutely refused to die (or, more to the point, IBM didn’t seem to be able to persuade people to buy the small AS/400s instead). IBM re-named it AS/Entry mid 1989. The last S20 and S22 models were withdrawn October 1992.
536x: The System/36 family. Replaced by the low-end AS/400s.
538x: The System/38 family. Replaced by the AS/400.
5394: Remote workstation controller for AS/400. Replaces the 5294. Announced June 1988. Replaced by the 5494 in December 1998.
5494: Remote control unit for the AS/400; basically it’s the 5394 with Token Ring capabilities. Announced February 1992. Enhanced September 1993 with LU6.2 and Frame Relay to Token Ring Bridge feature September 1996. Withdrawn in December 1999.
5520: Defunct IBM office administration system. Had good electronic mail facilities, word processing, etc, and at one time was a key strategic product. Its architecture was a major influence on the development of SNADS.
5525: System unit for the 5520 office administration system. Withdrawn April 1990.
5531: Ruggedized PC/XT. Withdrawn June 1989.
5552: Color display for the 5531. Withdrawn May 1992.
5811/2: Limited-distance modems. Obsolete.
5821/2: Data Service Unit/Channel Service Unit (DSU/CSU). Up-market extensions of IBM’s modem range. The 5821 is a straightforward modem, and the 5822 is a modem which can also support some network management on digital services. Withdrawn June 1990 and February 1997, respectively.
5841: Cheap and cheerful IBM modem: sync/async, full duplex, up to 1200bps. Withdrawn June 1989.
5842: Modem (up to 2400 bps). Withdrawn August 1988.
5853: IBM modem (up to 2400bps) announced February 1988. Nothing very special except that the price was fairly realistic for an IBM box. Withdrawn February 1997.
5858: IBM stand-alone synchronous modem from June 1989. Withdrawn December 1994.
586: Commonly-used name for the Pentium before its release and naming. Pent means five.
586x: IBM modem family from the early 1990s.
6030: 9370 communications processor. Originally supported TRN and Ethernet LANs only, but enhanced mid 1988 to provide support for all 9370 communication functions. Obsolete.
6040: ThinkPad power series 820. Replaced by the 7247.
6042: ThinkPad power series 850. Replaced by the 7249.
6050: IBM PC power series 830. Withdrawn March 1996.