题目内容

The mobile operating system developed by Apple and originally called iPhone

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

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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

This container houses most of the electrical components for a computer system.

A. chip carrier
B. system board
C. system unit
D. Unicode