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SHARE Operating System

Summary

The SHARE Operating System (SOS) is an operating system introduced in 1959 by the SHARE user group. It is an improvement on the General Motors GM-NAA I/O operating system, the first operating system for the IBM 704. The main objective was to improve the sharing of programs.

SHARE Operating System
DeveloperSHARE user group
Working stateDiscontinued
Initial release1959; 65 years ago (1959)
Available inEnglish
PlatformsIBM 709, IBM 7090
Preceded byGM-NAA I/O
Succeeded byIBM 7090/94 IBSYS

The SHARE Operating System provided new methods to manage buffers and input/output devices. Like GM-NAA I/O, it allowed execution of programs written in assembly language.

SOS initially ran on the IBM 709 computer and was then ported to its transistorized successor, the IBM 7090.

A series of articles describing innovations in the system[1] appears in the April 1959 Journal of the Association for Computing Machinery.

In 1962, IBM discontinued support for SOS and announced an entirely new (and incompatible) operating system, IBM 7090/94 IBSYS.

See also edit

References edit

  1. ^ Alt, Franz Leopold, ed. (1959-07-03) [April 1959]. "(various)". Journal of the ACM. 6 (2). New York: Association for Computing Machinery. ISSN 0004-5411.

Further reading edit

  • Shell, Donald L. (April 1959) [October 1958]. "The SHARE 709 System: A Cooperative Effort". Journal of the ACM. 6 (2): 123–127. doi:10.1145/320964.320966. S2CID 16476514. (5 pages)
  • Boehm, Elaine M.; Steel, Jr., Thomas B. (April 1959). "The SHARE 709 System: Machine Implementation of Symbolic Programming". Journal of the ACM. 6 (2): 134–140. doi:10.1145/320964.320968. S2CID 16545134. (7 pages)
  • DiGri, Vincent J.; King, Jane E. (April 1959) [1958-06-11]. "The SHARE 709 System: Input-Output Translation". Journal of the ACM. 6 (2): 141–144. doi:10.1145/320964.320969. S2CID 19660148. (4 pages) (NB. This was presented at the ACM meeting 11-13 June 1958.)
  • SOS Reference Manual - SHARE System for the IBM 709 (PDF). New York: SOS Group, International Business Machines Corporation. June 1961 [1959]. X28-1213. Distribution No. 1–5. Archived (PDF) from the original on 2020-06-18. Retrieved 2020-06-18. [1][2]

External links edit

  • Upload of the SHARE Operating System software and documentation (partial archive)