21-ALU Stands For

A- arithmetic and logical unit 

22-Cd Rom Drive Is Used To

A-install software and read write any document

23-Damaging Of Producing Error In Computer Knowingly Is Called:

A- hacking 

24-It Control The Internal Operation Of The Computer

A-system software

25-Printer Commonly Used For Desktop Publishing


26-Bios Stands For

A-basic input output system 

27-Computer Add And Compare Data In


28-Small Graphical Traces Displayed On The Screen Are Called


29-The Computer Can Understand And Execute The Language

A-machine language 

30-The Term Memory Applies To


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