10. An operating system intended for use on microprocessor based systems that support a single user is A.PC-DOS B.MS-DOS C.UNIX D.CP/M E.None of the above
Option D Solution: CP/M, originally standing for Control Program/Monitor and later Control Program for Microcomputers, is a mass-market operating system created for Intel 8080/85-based microcomputers by Gary Kildall of Digital Research, Inc.
