题目内容

Excel files are saved with a DOC or DOCX file extension.

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All computer programs, including firmware, require an operating system to function.

Firmware is a kind of hardware.

Which of the following is application software?( )

A. Word processor
B. spreadsheet
C. web browser
D. photo editor
E. Windows 2010

A character is stored with ( )byte(s).

A. 1
B. 2
C. 4
D. 8