Which of the following statement is not true?

Question $16$ options:

Early timesharing systems could support a small number of programs by swapping the contents of those not running to tape.

Until $1960,$ computers all ran batch systems

CTSS$,$ a project led by Fernando Corbat$$ at MIT.

In early timesharing systems, users did not have to wait hours or days to receive the results of their program's executions