• Thumbnail for IBM System/370
    The IBM System/370 (S/370) is a range of IBM mainframe computers announced as the successors to the System/360 family on June 30, 1970. The series mostly...
    99 KB (7,314 words) - 19:41, 25 May 2025
  • Thumbnail for IBM AIX
    hardware platforms, including the IBM RS/6000 series and later Power and PowerPC-based systems, IBM System i, System/370 mainframes, PS/2 personal computers...
    57 KB (5,312 words) - 21:26, 6 July 2025
  • Thumbnail for VM (operating system)
    a family of IBM virtual machine operating systems used on IBM mainframes System/370, System/390, zSeries, System z and compatible systems, including the...
    53 KB (5,833 words) - 17:47, 17 July 2025
  • IBM Enterprise Systems Architecture is an instruction set architecture introduced by IBM as Enterprise Systems Architecture/370 (ESA/370) in 1988. It is...
    52 KB (1,134 words) - 22:04, 12 July 2025
  • Thumbnail for IBM System/390
    1960s, 370 for 1970s. Enterprise System/9000 (ES/9000), as in 360 for 1960s, 370 for 1970s. Enterprise Systems Architecture/390 (ESA/390) was IBM's last...
    46 KB (3,685 words) - 12:11, 13 July 2025
  • IBM System/370-XA is an instruction set architecture introduced by IBM in 1983 for the IBM 308X processors.: 198  It extends the IBM System/370 architecture...
    30 KB (1,084 words) - 12:49, 8 July 2025
  • market with the 7000 series and the later System/360, followed by the System/370. Current mainframe computers in IBM's line of business computers are developments...
    16 KB (1,805 words) - 13:50, 1 May 2025
  • Thumbnail for IBM System/370 Model 168
    The IBM System/370 Model 168 and Model 158 were both announced on August 2, 1972. Prior 370 systems had not "offered virtual storage capability, which...
    8 KB (761 words) - 11:28, 27 September 2024
  • Thumbnail for IBM System/360
    The IBM System/360 (S/360) is a family of mainframe computer systems announced by IBM on April 7, 1964, and delivered between 1965 and 1978. System/360...
    83 KB (8,940 words) - 21:28, 16 July 2025
  • Thumbnail for IBM 4300
    The IBM 4300 series are mid-range systems compatible with System/370 that were sold from 1979 through 1992. They featured modest electrical and cooling...
    14 KB (1,308 words) - 20:18, 5 July 2025
  • developed at Bell Labs beginning in late 1972 by Marc Rochkind for an IBM System/370 computer running OS/360. A characteristic feature of SCCS is the sccsid...
    18 KB (1,946 words) - 15:45, 28 March 2025
  • Thumbnail for Asymmetric multiprocessing
    devices. Two options were available for the IBM System/370 Model 168 for attaching a second processor. One was the IBM 3062 Attached Processing Unit, in which...
    11 KB (1,296 words) - 05:38, 17 June 2025
  • microcode to execute many of the System/370's processor instructions, so that it could run a slightly modified version of IBM's APL mainframe program interpreter...
    24 KB (3,074 words) - 19:48, 27 January 2025
  • Thumbnail for IBM System/370 Model 145
    IBM System/370 Model 145 was announced September 23, 1970, three months after the 155 and 165 models. It was the fourth member of the IBM System/370 line...
    7 KB (610 words) - 10:26, 12 May 2024
  • The IBM 3090 family is a family of mainframe computers that was a high-end successor to the IBM System/370 series, and thus indirectly the successor to...
    14 KB (986 words) - 01:35, 6 January 2025
  • that featured 26-bit memory addressing are certain second generation IBM System/370 mainframe computer models introduced in 1981 (and several subsequent...
    5 KB (746 words) - 00:37, 15 December 2024
  • The history of IBM mainframe operating systems is significant within the history of mainframe operating systems, because of IBM's long-standing position...
    51 KB (5,935 words) - 20:24, 25 May 2025
  • Thumbnail for List of IBM products
    execute/emulate the System/370 instructions—1983. IBM 5155: IBM Portable—1984 IBM 4860: IBM PCjr—1984 IBM 5170: IBM Personal Computer/AT—1984 IBM 5140: IBM Convertible—1986...
    189 KB (19,576 words) - 14:11, 29 June 2025
  • (Fourth ed.). IBM. September 1974. pp. 57–68. GA22-7000-4. "Dynamic Address Translation". IBM System/370 Principles of Operation (Eleventh ed.). IBM. September...
    19 KB (2,337 words) - 16:57, 21 June 2025
  • Thumbnail for Memory management unit
    later called paravirtualization, easier. Starting in August, 1972, the IBM System/370 has a similar MMU, although it initially supported only a 24-bit virtual...
    49 KB (7,099 words) - 18:50, 8 May 2025
  • Thumbnail for IBM System/370 Model 115
    IBM System/370 Model 115 was announced March 13, 1973, at that time the low-end model of the System/370 line. It was promoted as "an ideal System/370...
    5 KB (413 words) - 06:52, 16 September 2024
  • code-named Merlin, was introduced in June 1970 for use with the IBM System/370 and the IBM System 360/195. The original announcement included the 3330 Model...
    75 KB (9,527 words) - 09:33, 2 June 2025
  • Thumbnail for IBM System/370 Model 148
    The IBM System/370 Model 148 (and the Model 138) were both announced June 30, 1976 Not only were they both more powerful and better in price/performance...
    6 KB (524 words) - 03:04, 26 December 2024
  • Thumbnail for IBM System/370 Model 155
    The IBM System/370 Model 155 (and the Model 165) were jointly announced Jun 30, 1970 as "designed for ... the Seventies." That same day IBM announced...
    7 KB (668 words) - 09:09, 12 May 2024
  • Thumbnail for IBM System/370 Model 165
    The IBM System/370 Model 165 (and the Model 155) were jointly announced June 30, 1970 as "designed for ... the Seventies." That same day IBM announced...
    9 KB (873 words) - 17:17, 13 May 2024
  • Thumbnail for IBM 370 printer
    The IBM 370 printer was used on the IBM 305 RAMAC computer system, introduced by IBM on September 14, 1956. The 370 was connected to the 305 by a serial...
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  • Thumbnail for IBM System/3
    The IBM System/3 was an IBM midrange computer introduced in 1969, and marketed until 1985. It was produced by IBM Rochester in Minnesota as a low-end...
    20 KB (2,785 words) - 20:15, 25 August 2024
  • Unix-like on IBM S/360, S/370, and successor mainframes AIX/370 (IBM's Advanced Interactive eXecutive, a System V Unix version) AIX/ESA (IBM's Advanced Interactive...
    73 KB (8,384 words) - 16:49, 4 June 2025
  • Thumbnail for TSS (operating system)
    by IBM. TSS pioneered a number of novel features, some of which later appeared in more popular systems such as MVS. TSS was migrated to System/370 and...
    14 KB (1,402 words) - 09:10, 27 May 2025
  • Thumbnail for IBM 308X
    The IBM 308X is a line of mainframe computers that implemented the System/370 Extended Architecture, which extended the original 24-bit addressing to...
    13 KB (1,365 words) - 12:56, 8 July 2025