• Thumbnail for IBM System/360
    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 was...
    83 KB (8,931 words) - 11:48, 30 April 2025
  • Thumbnail for IBM System/360 Model 67
    The IBM System/360 Model 67 (S/360-67) was an important IBM mainframe model in the late 1960s. Unlike the rest of the S/360 series, it included features...
    30 KB (2,700 words) - 19:01, 28 August 2024
  • The IBM System/360 architecture is the model independent architecture for the entire S/360 line of mainframe computers, including but not limited to the...
    79 KB (6,784 words) - 23:55, 19 March 2025
  • Thumbnail for IBM System/360 Model 91
    IBM System/360 Model 91 was announced in 1964 as a competitor to the CDC 6600. Functionally, the Model 91 ran like any other large-scale System/360,...
    11 KB (1,096 words) - 09:27, 27 January 2025
  • Thumbnail for IBM System/360 Model 30
    The IBM System/360 Model 30 was a low-end member of the IBM System/360 family. It was announced on April 7, 1964, shipped in 1965, and withdrawn on October...
    17 KB (1,713 words) - 23:26, 14 September 2024
  • 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) - 16:58, 30 March 2025
  • Thumbnail for TSS (operating system)
    The IBM Time Sharing System TSS/360 is a discontinued early time-sharing operating system designed exclusively for a special model of the System/360 line...
    14 KB (1,400 words) - 18:03, 20 February 2024
  • Thumbnail for IBM System/360 Model 50
    The IBM System/360 Model 50 is a member of the IBM System/360 family of computers. The Model 50 was announced in April 1964 with the other initial models...
    13 KB (1,402 words) - 17:31, 8 November 2024
  • Operating System/360, also DOS/360, or simply DOS, is the discontinued first member of a sequence of operating systems for IBM System/360, System/370 and...
    29 KB (3,656 words) - 02:32, 14 October 2024
  • Thumbnail for IBM System/360 Model 65
    The IBM System/360 Model 65 is a member of the IBM System/360 family of computers. It was announced April 1965, and replaced two models, the Model 60...
    6 KB (597 words) - 02:42, 7 October 2024
  • Thumbnail for IBM System/360 Model 20
    The IBM System/360 Model 20 is the smallest member of the IBM System/360 family announced in November 1964. The Model 20 supports only a subset of the...
    19 KB (2,291 words) - 02:18, 6 October 2024
  • 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/360 Model 40
    The IBM System/360 Model 40 was a mid-range member of the IBM System/360 family. It was announced on April 7, 1964, shipped in 1965, and withdrawn on October...
    9 KB (641 words) - 02:01, 25 February 2025
  • Thumbnail for OS/360 and successors
    OS/360, officially known as IBM System/360 Operating System, is a discontinued batch processing operating system developed by IBM for their then-new System/360...
    74 KB (6,798 words) - 02:57, 5 April 2025
  • Thumbnail for IBM System/360 Model 25
    The IBM System/360 Model 25 is a low-end member of the IBM System/360 family. It was announced on January 3, 1968, 3 years before the IBM System/360 Model...
    11 KB (1,062 words) - 18:45, 12 May 2024
  • Thumbnail for IBM System/360 Model 85
    The IBM System/360 Model 85 is a high-end member of the System/360 family of computers, with many advanced features, and was announced in January 1968...
    8 KB (835 words) - 06:11, 11 April 2025
  • Thumbnail for IBM System/360 Model 195
    The IBM System/360 Model 195 is a discontinued IBM computer introduced on August 20, 1969. The Model 195 was a reimplementation of the IBM System/360 Model...
    5 KB (422 words) - 00:09, 14 May 2025
  • The IBM Basic assembly language and successors is a series of assembly languages and assemblers made for the IBM System/360 mainframe system and its successors...
    39 KB (4,365 words) - 13:23, 11 February 2025
  • Thumbnail for IBM Information Management System
    version on the IBM System/360 Model 65 was completed in 1967 as ICS/DL/I and officially installed in August 1968. IBM rebranded it IMS/360 in 1969, and...
    14 KB (1,665 words) - 06:19, 20 March 2025
  • Thumbnail for BOS/360
    Operating System/360 (BOS/360) was an early IBM System/360 operating system. BOS was one of four System/360 Operating System versions developed by the IBM General...
    6 KB (434 words) - 03:57, 1 January 2024
  • Thumbnail for IBM System/390
    The IBM System/390 is a discontinued mainframe product family implementing ESA/390, the fifth generation of the System/360 instruction set architecture...
    45 KB (3,649 words) - 02:43, 7 October 2024
  • Thumbnail for IBM System/360 Model 44
    The IBM System/360 Model 44 is a specialized member of the IBM System/360 family, with a variant of the System/360 computer architecture, designed for...
    9 KB (1,058 words) - 07:13, 20 September 2024
  • Thumbnail for IBM 2250
    The IBM 2250 Graphics Display Unit was a vector graphics display system by IBM for the System/360; the Model IV attached to the IBM 1130. The IBM 2250...
    7 KB (641 words) - 13:41, 5 April 2025
  • Thumbnail for IBM System/3
    than half cost of an IBM System/360 Model 20; the smallest member of the IBM System/360 family. Many of the original System/3 model 10 units were shipped...
    20 KB (2,785 words) - 20:15, 25 August 2024
  • Thumbnail for Bootloader
    next-stage bootloader (such as BOOTMGR and GRUB2) from EFI System Partition directly. In IBM System/360 and successors, the LOAD operator control initiates a...
    32 KB (3,378 words) - 02:54, 25 March 2025
  • IBM Enterprise Systems Architecture is an instruction set architecture introduced by IBM as Enterprise Systems Architecture/370 (ESA/370) in 1988. It is...
    51 KB (1,087 words) - 17:04, 30 March 2025
  • 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) - 20:11, 25 August 2024
  • used. By the time IBM announced the System/360 mainframes, the concept of a disk operating system was well established. Although IBM did offer Basic Programming...
    11 KB (1,311 words) - 20:17, 8 March 2025
  • Thumbnail for IBM Z
    operations. The IBM Z family maintains full backward compatibility. In effect, current systems are the direct, lineal descendants of the System/360, announced...
    49 KB (5,355 words) - 15:03, 2 May 2025
  • Thumbnail for IBM 7030 Stretch
    IBM System/360 became obvious, he received an official apology, and in 1966 was made an IBM Fellow. In spite of the failure of Stretch to meet IBM's performance...
    23 KB (2,171 words) - 01:58, 1 May 2025