Commercial Operating System

Commercial Operating System (COS)
DeveloperDigital Equipment Corporation
Initial release1972[1]
Available inEnglish
PlatformsPDP-8, PDP-11, DECmate II
LicenseProprietary
Preceded byMS/8

Commercial Operating System (COS) is a discontinued family of operating systems from Digital Equipment Corporation.[2]

They supported the use of DIBOL, a programming language combining features of BASIC, FORTRAN and COBOL.[3] COS also supported IBM RPG (Report Program Generator).[1]

  1. ^ a b DIGITAL EQUIPMENT CORPORATION - Nineteen Fifty-Seven To The Present (PDF). Digital Equipment Corporation. 1978.
  2. ^ Binh Nguyen. Linux Dictionary. p. 424., citing "QUECID".
  3. ^ "Time-Sharing Uses Emphasized For DEC Datasystem 350 Series". Computerworld. July 30, 1975. p. 19. Dibol Under COS: The series operates under the Commercial Operating System (COS) 350, which provides timesharing with a high-speed response.