Q.571 .- First Computer mouse was built by_______
(A) Douglas Engelbart
(B) William English
(C) Robert Zawacki
(D) Von Neumann
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Answer: (A) Douglas Engelbart
Q.572 .- Which of the following is not a hardware?
(A) Processor
(B) Printer
(C) Mouse
(D) Java
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Answer: (D) Java
Q.573 .- The transfer of data from a CPU to peripheral devices of computer is achieved through ________
(A) Modem
(B) Interface
(C) Buffer
(D) I/O Ports
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Answer: (D) I/O Ports
Q.574 .- A thin plate or board that contains electronic components is called ___________
(A) Hard Disk
(B) RAM
(C) ROM
(D) Circuit Board
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Answer: (D) Circuit Board
Q.575 .- A ___________ is used to create a digital representation of a printed document or photograph.
(A) Video Digitizer
(B) Scanner
(C) Monitor
(D) None of the Above
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Answer: (B) Scanner
Q.576 .- The wheel located between the two standard buttons on a mouse is used to ________
(A) click in Web pages.
(B) scroll.
(C) click and select items.
(D) jump to different Web pages
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Answer: (B) scroll.
Q.577 .- Any data and instruction entered in the memory of a computer is__________
(A) Storage
(B) Output
(C) Input
(D) Information
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Answer: (C) Input
Q.578 .- Which input device resembles an upside-down mouse?
(A) Trackball
(B) Pointing stick
(C) Track pad
(D) Touch pad
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Answer: (A) Trackball
Q.579 .- Bar-code readers use light to read ______
(A) UPCs
(B) UPSs
(C) POSs
(D) optical marks
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Answer: (A) UPCs
Q.580 .- The display size of a monitor is measured _________
(A) diagonally.
(B) horizontally.
(C) vertically.
(D) None of the Above
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Answer: (A) diagonally.
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