题目内容

单选题 ( ) is a program that facilitates the execution of other programs.

An operating system
B. Hardware
C. A queue
D. An application program

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单选题 ( ) supervises the activity of each component in a computer system.

An operating system
B. Hardware
C. A queue
D. An application program

单选题 The earliest operating system, called ( )operating systems, only had to ensure that resources were transferred from one job to the next.

A. batch
B. time-sharing
C. personal
D. Parallel

单选题 ( )operating system is needed for jobs shared between distant connected computers.

A. batch
B. time-sharing
C. parallel
D. distributed

单选题 Multiprogramming requires a ( ) operating system.

A. batch
B. time-sharing
C. parallel
D. distributed