In which year the first operating system was developed
1910
1940
1950
1980
Answer : C
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1) The COPY command of MS-DOS, is used to:
copying files from one floppy disk to another floppy disk
copying one or more files on the same disk or directory
copying two or more files into a single file
All of the above
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2) What is a TSR?
test status request
terminate and stay resident program
take status request
token set ready
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3) Which command of DOS is used to compare two floppy disks?
4) After searching the current directory where does command.com search next?
5) Operating System is like a
