Editing BOS/360 (section)

== Components ==
BOS consisted of the following components:
* Control programs:
** The [[Supervisory program|supervisor]].
** [[Job Control Language|Job control]] capable of running jobs sequentially from the card reader.
** The [[Initial Program Load#IBM Initial Program Load|IPL]] loader.
* System Service Programs:
** The [[Linkage editor|Linkage Editor]].
** The Librarian, supporting a core-image library, and optionally a macro library and a relocatable library.
** The "Load System Program," a [[sysgen]] program to build a disk-resident BOS system from cards.
* IBM-supplied processing programs which could be installed with BOS:
** Language translators, an [[Assembler (computer programming)#Assembler|Assembler]] and an [[IBM RPG|RPG]] compiler.  Compilers for [[FORTRAN IV]] and [[COBOL]] were added later.
** Autotest, a debugging aid.
** Sort/Merge.
** Utility programs for file-to-file copy between devices and formats.
** [[Remote job entry|Remote Job Entry]] allowing the BOS system to submit jobs to a remote System/360 and receive output.
* Data Management, consisting of supervisor support for Physical [[IOCS]], and macros for Logical IOCS which could be incorporated into the user's processing programs.