An operating system that works on desktop or notebook computer is called
a) server operating system
b) mobile operating system
c) stand-alone operating system
d) none of these
Which of the following are examples of standalone operating system?
a) disk operating system
b) windows
c) Unix
d) all of these
Which of the following command is used to display all directories in DOS?
a) DIR
b) DER
c) CLS
d) CD
Which of the following command is used for clear screen in disk
operating system?
a) DIR
b) DER
c) CLS
d) CD
CLS stand for clear screen
Which of the following command is used for change directory in disk operating system?
a) DIR
b) DER
c) CLS
d) CD
CD stand for change directory
Which of the following year Mac operating system was introduced first time for Macintosh computer?
a) 1980
b) 1982
c) 1984
d) 1986
