Commercial Operating System ( COS ) is a discontinued family of operating systems from Digital Equipment Corporation .
5-469: They supported the use of DIBOL , a programming language combining features of BASIC , FORTRAN and COBOL . COS also supported IBM RPG (Report Program Generator). The Commercial Operating System was implemented to run on hardware from the PDP-8 and PDP-11 families. COS-310 was developed for the PDP-8 to provide an operating environment for DIBOL . A COS-310 system was purchased as a package which included
10-540: A desk, VT52 VDT (Video Display Tube), and a pair of eight inch floppy drives. It could optionally be purchased with one or more 2.5 MB removable media hard drives. COS-310 was one of the operating systems available on the DECmate II . COS-350 was developed to support the PDP-11 port of DIBOL, and was the focus for some vendors of turnkey software packages. Pre-COS-350, a PDP 11/05 single-user batch-oriented implementation
15-488: Was developed from 1970 to 1993. DIBOL has a syntax similar to FORTRAN and BASIC , along with BCD arithmetic. It shares the COBOL program structure of separate data and procedure divisions. Unlike Fortran's numeric labels (for GOTO), DIBOL's were alphanumeric; the language supported a counterpart to computed goto. DIBOL was originally marketed by Digital Equipment Corporation (DEC) in 1970. The original version, DIBOL-8,
20-601: Was produced for PDP-8 systems running COS-300 . The PDP-8-like DECmate II , supports the COS-310 Commercial Operating System, featuring DIBOL. DIBOL-11 was developed for the PDP-11 running COS-350 operating system. It also ran on RSX-11, RT-11, and from 1978 on RSTS/E . DIBOL-32 runs on VMS systems, although it can also be used on other systems through emulators . ANSI Standards were released in 1983, 1988 and 1992 (ANSI X3.165-1992). The 1992 standard
25-485: Was released; the multi-user PDP 11/10-based COS came about 4 years later. The much more powerful PDP-11/34 "added significant configuration flexibility and expansion capability." DIBOL DIBOL or Digital's Business Oriented Language is a general-purpose , procedural , imperative programming language that was designed for use in Management Information Systems (MIS) software development. It
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