In 1964 DOS was a true multitasking OS that ran in 16k of storage with up to 3 partitions of applications running concurrently.
Which O/S are you talking about here? PC/MS-DOS 1.0 was introduced in 1981 with the original IBM PC, taking some of its features from CP/M, with Unix adding a little influence too.
Spot on with the general idea though. Mainframe systems were happily running multi-tasking efficiently and
reliably in the 1960s and Windows
still can't get it right.
