संदेश

Timeline of window and windows shortcut key why? unit of computer memory measurement?

what is input device, output device and storage device ? SOME SHORTCUT KEYS OF COMPUTER?

definition of HARDWARE? classification of hardware?

WHAT IS SOFTWARE? CLASSIFICATION OF SOFTWARE'?

CLASSIFICATION OF COMPUTER? TYPES OF COMPUTER?

what is computer? history of computer''? who is invention of computer?SOME INVENTORS NAME GIVEN?