题目内容

The category of operating system used for handheld devices.

A. Network
B. Embedded
C. Stand-alone
D. Open source

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

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

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