IBM Basic Programming Support

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IBM Basic Programming Support/360 (BPS), originally called Special Support, was a set of standalone programs for System/360 mainframes with a minimum of 8 KiB of memory.

BPS was developed by IBM's General Products Division in Endicott, New York. The package included "assemblers, IOCS, compilers, sorts, and utilities but no governing control program." BPS components were introduced in a series of product announcements between 1964 and 1965.[1]:pp.319-321

BPS came in two versions — a strictly card system and a tape based system which, contrary to the stated goals, kept a small supervisor permanently resident.[2]:p.14

Programming languages available were Assembler, RPG, and FORTRAN IV (subset). Tape FORTRAN required 16 KiB of memory.[2]:p.5 There were also two versions of the BPS assembler, with the tape version having enhanced capabilities.

BPS also had a "disk" counterpart called BOS. It also required 8K and supported disks such as the IBM 1311.

The group responsible for BPS/BOS went on to develop DOS/360 and TOS/360 as a supposed "interim" solution when it became evident that OS/360 would be too large to run on 16 KiB systems.

References[edit]

  1. ^ Pugh, E.W., Johnson, L.R. and Palmer, J.H. (1991). IBM's 360 and Early 370 Systems. MIT Press. ISBN 0-262-16123-0. 
  2. ^ a b IBM Corporation (1965). IBM System/360 Basic Programming Support and IBM Basic Operating System/360 Programming Systems Summary. 

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