题目内容

The operating system based on Linux, designed for notebook computers that use cloudcomputing and cloud storage:

A. Chrome
B. Mac
C. UNIX
D. Windows

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The mobile operating system developed by Apple and originally called iPhone

Android
B. iOS
C. Mac OS
D. Phone OS

A utility program that copies all files in the libraries, contacts, favorites, and on the desktop:

A. File History
B. Disk Cleanup
C. Optimize Drives
D. Compactor

A troubleshooting utility that identifies and eliminates nonessential files, frees up valuable disk space, and improves system performance:

A. File History
B. Disk Cleanup
C. Optimize Drives
D. Compactor

BitDefender, Kaspersky, and Norton are examples of:

A. application packages
B. apps
C. operating systems
D. utility suites