1960s
- 1960
- IBSYS (IBM for its 7090 and 7094)
- KDF9 Timesharing Director (English Electric) An early, fully hardware secured, fully pre-emptive process switching, multi-programming operating system for KDF9 (Announced)
- 1961
- CTSS (MIT's Compatible Time-Sharing System for the IBM 7094)
- MCP (Burroughs Master Control Program)
- 1962
- Atlas Supervisor (Manchester University) (Atlas computer commissioned)
- GCOS (GE's General Comprehensive Operating System, originally GECOS, General Electric Comprehensive Operating Supervisor)
- 1963
- Titan Supervisor, early time-sharing system begun
- AN/FSQ-32, another early time-sharing system begun
- 1964
- EXEC 8 (UNIVAC)
- OS/360 (IBM's primary OS for its S/360 series) (Announced)
- TOPS-10 (DEC, the name TOPS-10 wasn't adopted until 1970)
- Berkeley Timesharing System (for Scientific Data Systems' SDS 940)
- Dartmouth Time Sharing System (Dartmouth College's DTSS for GE computers)
- 1965
- THE multiprogramming system (Technische Hogeschool Eindhoven)
- Multics (MIT, GE, Bell Labs for the GE-645) (Announced)
- BOS/360 (IBM's Basic Operating System)
- TOS/360 (IBM's Tape Operating System)
- TSOS (later VMOS) (RCA)
- 1966
- OS/360 (IBM's primary OS for its S/360 series) PCP and MFT (Shipped)
- DOS/360 (IBM's Disk Operating System)
- MS/8 (Richard F. Lary's DEC PDP-8 system)
- 1967
- CP/CMS (IBM, also known as CP-67)
- Michigan Terminal System (MTS) (time-sharing system for the IBM S/360-67 and successors)
- ITS (MIT's Incompatible Timesharing System for the DEC PDP-6 and PDP-10)
- ORVYL (Stanford University's time-sharing system for the IBM S/360)
- TSS/360 (IBM's Time-sharing System for the S/360-67, never officially released, canceled in 1969 and again in 1971)
- OS/360 MVT
- WAITS (SAIL, Stanford Artificial Intelligence Laboratory, time-sharing system for DEC PDP-6 and PDP-10, later TOPS-10)
- 1968
- Airline Control Program (ACP) (IBM)
- THE multiprogramming system (Eindhoven University of Technology)
- TSS-8 (DEC for the PDP-8)
- 1969
- TENEX (Bolt, Beranek and Newman for DEC systems, later TOPS-20)
- Unics (later Unix) (AT&T, initially on DEC computers)
- RC 4000 Multiprogramming System (RC)
- Multics (MIT, GE, Bell Labs for the GE-645 and later the Honeywell 6180) (opened for paying customers in October)
Read more about this topic: Timeline Of Operating Systems