Operating Systems

 

The whole purpose of these new-fangled minicomputers is to perform a specified application function, usually with the assistance of an "operating system".  Sometimes the distinction between the "operating system" and the "application environment" or "implementation language" is blurred, but usually the operating system is a separate entity with a life of its own.

The following lists summarize the major operating systems that run on the corresponding hardware.  If you know of one that is not listed, please tell us!

Nova and Eclipse

original DG DOS   the easiest-to-use DOS of its time, written by Mr. Henderson with another gentleman in 1969
RTOS   several version exist, some compatible with RDOS system call formats
SOS    mag tape-oriented operating system
DSOS   arcane operating system compatible with DOS
RDOS    DG's mainstay Nova and Eclipse disk operating system for over 16 years
newer DOS
ICOS
RDOS/INFOS
DG/RDOS
MP/OS
MP/AOS
AOS
IDOS II and IDOS III [Finnigan's MAT INCOS system]
NANOS/Nova
NANOS/Eclipse
VMOS
BLIS/COBOL
MPS [COBOL]
MICOS
TRIPOS
MSOS
MTX
KMTX
EUNUCHS
IRIS
BITS
RTX
LTX [testing systems]
EOS
FORTH(?)
CDOS [Calma]
XDOS
DDOS

 

MV

NANOS/MV
DG/RDOS MV
AOS/VS
AOS/VS II
AOS/RT32
DG/UX
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