Table 1 Classic Operating Systems
Major Phases Operating Systems
I Open Shop 1 IBM 701 open shop (1954)
II Batch Processing 2 BKS system (1961)
III Multiprogramming 3 Atlas supervisor (1961)
4 B5000 system (1964)
5 Exec II system (1966)
6 Egdon system (1966)
IV Timesharing 7 CTSS (1962)
8 Multics file system (1965)
9 Titan file system (1972)
10 Unix (1974)
V Concurrent Programming 11 THE system (1968)
12 RC 4000 system (1969)
13 Venus system (1972)
14 Boss 2 system (1975)
15 Solo system (1976)
16 Solo program text (1976)
VI Personal Computing 17 OS 6 (1972)
18 Alto system (1979)
19 Pilot system (1980)
20 Star user interface (1982)
VII Distributed Systems 21 WFS file server (1979)
22 Unix United RPC (1982)
23 Unix United system (1982)
24 Amoeba system (1990)