This article needs to be updated.(November 2017) |
In computing, virtualization is the use of a computer to simulate another computer. The following is a chronological list of virtualization technologies.
Note: This timeline is missing data for important historical systems, including: Atlas Computer (Manchester), GE 645, Burroughs B5000.
In the mid-1960s, IBM's Cambridge Scientific Center develops CP-40, the first version of CP/CMS. Experience on the CP-40 project provides input to the development of the IBM System/360 Model 67, announced in 1965. CP-40 is re-implemented for the S/360-67 as CP-67, and by April 1967, both versions are in daily production use.
IBM announces the System/370 in 1970. In 1972, IBM announces that virtual memory would be made available on all S/370 models, and also announces several virtual storage operating systems, including VM/370. By the mid-1970s, CP/CMS, VM, and VP/CSS are running on numerous large IBM mainframes.