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DOS (Disk Operating System) was the frst widely-

installed operating system or personal computers.The

frst personal computer version o DOS called !"-DOS

was developed or #$% &y $ill 'ates and his new %icrosot"orporation. e retained the rights to market a %icrosot

version called %S-DOS. !"-DOS and %S-DOS are almost

identical and most users have reerred to either o them

as ust *DOS.* DOS was (and still is) a non-graphical line-

oriented command- or menu-driven operating system

with a relatively simple interace &ut not overly *riendly*

user interace. #ts prompt to enter a command looks like

this+

"+ ,

#n the /0s &eore the personal computer was invented

#$% had a di1erent and unrelated DOS (Disk Operating

System) that ran on smaller &usiness computers.

%S-DOS was the 2op that created an empire or %icrosotand it lead to to great things.

3indows .0 4 5.0 (67-5)

3indows 8.0 4 8. (049)

3indows 7 (:ugust 7)

3indows 6 (;une 6)

3indows 5000 (ista (?ovem&er 500@)

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