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Example research essay topic: Discovering Computers Registry Mechanic - 456 words

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Discovering Computers: Registry Mechanic Registry Mechanic designed for All of the following are widely used input devices except the printer and monitor. Answer: d. printer and monitor The mouse is a small handheld input device that controls the movement of a small symbol on the screen called the pointer. Answer: b. mouse 3.

The average floppy disk can hold more than 80 billion characters. Answer: b. False 4. A scanner is an input device that converts printed material to a form the computer can use. Answer: d. scanner 5.

Each of the following is a commonly used output device except a scanner Answer: c. a scanner 6. Storage holds data, instructions and information for future use. Answer: d. all of the above 7. A hard disk provides much greater storage capacity than a floppy disk, Zip disk, or USB flash drive.

Answer: d. greater storage capacity than a floppy disk, Zip disk, or USB flash drive 8. A compact disc is a thin, circular, flexible disk enclosed in a square-shaped plastic shell. Answer: a. True 9. Keyboards contain keys that allow users to position the insertion point, also known as a cursor in some programs.

Answer: b. cursor 10. An optical mouse is more precise than a mechanical mouse and does not require cleaning, but it also is more expensive. Answer: d. more precise than a mechanical mouse and does not require cleaning, but it also is more expensive 11. Generally, the mouse is used to move the pointer on the screen to an object such as a button, and then users press a mouse button to perform a certain action on that object.

Answer: c. press a mouse button 12. A mouse is the most widely used pointing device today. Answer: b. mouse 13. A portable keyboard is a full-sized keyboard that can be conveniently attached and removed from a PDA or mobile device.

Answer: b. portable keyboard 14. The camera in a (n) retinal scanner scans patterns of blood vessels in the back of the retina. Answer: d. retinal scanner 15. A smart card which is comparable in size to a credit card or ATM card, stores personal data on a thin microprocessor embedded in the carD.

Answer: b. smart card 16. A key guard is a metal or plastic plate placed over the keyboard that allows users to rest their hands on the keyboard without accidentally pressing any keys. Answer: b. key guard 17. Defragmenting a disk, or reorganizing it so the files are stored in contiguous sectors, speeds up disk access and thus the performance of the entire computer.

Answer: b. Defragmenting Works Cited G. , Shelly. and M. Vermont.

Discovering Computers 2010: Living in a Digital World, Fundamentals. Course Technology, 2009.


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Research essay sample on Discovering Computers Registry Mechanic

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