Meaning of DOS/360 in English

< operating system > The operating system announced by IBM at the low end for the System/360 in 1964 and delivered in 1965 or 1966.

Following the failure of OS , IBM designed DOS for the low end machines, able to run in 16KB(?) and 64KB memory.

DOS/360 used three memory partitions , but it had no serious memory protection . The three partitions were not specialised, but frequently one was used for spooling punched cards to disk , another one for batch job execution and another for spooling disk to printers.

With DOS/VS, introduced in 1970, the number of partitions was increased, virtual memory was introduced and the minimum memory requirements increased.

Later they released DOS/VSE and ESA/VSE. DOS/360 successors are still alive today (1997) though not as popular as in the late 1960s.

Contrary to the Hacker's Jargon File , GECOS was not copied from DOS/360.


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