题目内容

The operating system is often referred to as the software environment or software _____.

A. network
B. platform
C. window
D. desktop

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The most widely used personal computer operating system.

A. Macintosh
B. Netware
C. Linux
D. Windows

This version of Mac OS X has improved power management and enhanced workflow options for multiple monitor setups.

A. Launchpad
B. Mission Control
C. Mavericks
D. Mountain Lion

This operating system is widely used by servers on the web, mainframe computers, and very powerful personal computers.

A. Windows
B. Mac OS X
C. Linux
D. UNIX

This operating system is designed to run only with Apple computers.

A. Windows
B. Linux
C. Mac OS
D. UNIX

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