Os(operating system)

Os(operating system)What ?

Why ?

Where ?

What -: it is an interface between user and computer

Why : - without os computer can not work #

Where :- every computer need os

Shape of the osShape is two types1) CUI (character user interface)

DOS, Unix

2) GUI( Graphical User Interface)

Windows 98, 2000, millennium , xpBootingTo get ready to our computer is called booting

1) It check the RAM area( random access memory)2) POST (power on self test)

3) System file

1) io.sys

2) msdos.sys

3) command.com

4) drvspace.bin

Icon

desktop

Task bar

System tray