SYSTAT is a command on the DEC

TOPS-10 TOPS-10 System (''Timesharing / Total Operating System-10'') is a discontinued operating system from Digital Equipment Corporation (DEC) for the PDP-10 (or DECsystem-10) mainframe computer family. Launched in 1967, TOPS-10 evolved from the earlier ...

and RSTS/E computer

operating system An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. Time-sharing operating systems schedule tasks for efficient use of the system and may also in ...

s by which one obtained the current general status of the running operating system. The commands showed the logged-on users, processes, I/O, and other interesting system management information.''TOPS-10 Operating System Commands Manual.'' Maynard, MA: Digital Equipment Corporation, 1988; part number AA-0916F-TB; p. 2-305. Scan available a
bitsavers.org
(retrieved: 5-April-2015).

References

{{Digital Equipment Corporation Digital Equipment Corporation