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21. What is Windows Vista?
(A). Processor
(B). Output Device
(C). Storage Device
(D). Operating System


22. Which of the following is not an operating system used in computer?
(A). Windows 95
(B). Windows 2000
(C). MSDOS
(D). Windows 3.1 (e) Windows 98


23. “DTP” is a computer abbreviation usually means–
(A). Digital Transmission Protocol
(B). Desktop Publishing
(C). Document Type Processing
(D). Document Transfer Processing (e) Data Type Programming


24. Which of the following is equivalent roughly to 1 billion bytes?
(A). One kilobyte
(B). One Terabyte
(C). One Gigabyte
(D). One Megabyte (e) One Megabit


25. The ALU and Control unit, jointly is known as–
(A). RAM
(B). CPU
(C). PC
(D). EPROM (e) ROM