A.public
B.private
C.local area
D.wide area
第1题
The most widely used personal computer software is ( ) software.
A、Communications
B、Word Processing
C、Database Management
D、Electronic Spreadsheets
第2题
A backup program ( ).
A、makes a copy of files you select
B、returns you to the previous program
C、undoes the last change you made
D、None of the above
第3题
Windows versions before Windows 95 ( ).
A、are proprietary
B、are not operating system at all
C、rely on DOS as the operating system
D、were the first successful graphical operating system
第4题
( ) is software the converts high-level language statements into machine language once at a time, in succession.
A、Compiler
B、Language translator
C、Assembler
D、Interpreter
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