Which of the following is an operating system?
A. Microsoft Windows
B. OS X
C. Linux
D. Android
E. all of the above
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Which program does not require an operating system to function.( )
A. Microsoft word
B. Micorsoft Powerpoint
C. firmware
D. Photoshop
The operating system is one of ( ).
A. hardware
B. computer
C. application software
D. system software
元曲四大爱情剧分别是关汉卿的《拜月亭》、白朴的《墙头马上》和王实甫的《______ 》、郑光祖的《______ 》。