Technology Today and Tomorrow ©2004

Chapter 5: Computers

Computers

1.
The four basic parts of a computer are
A)keyboard, mouse, screen, and power supply.
B)input unit, CPU, storage unit, and output unit.
C)CPU, cache, disk drive, and output unit.
D)input unit, CPU, power unit, and output unit.
2.
In a personal computer, the CPU is a(n)
A)microprocessor.
B)input unit.
C)output unit.
D)transistor.
3.
Which of the following is not an example of a computer input unit?
A)mouse
B)keyboard
C)printer
D)touch screen
4.
A CD is classed as an optical storage medium because
A)laser light is used to read and record the data.
B)you can remove it from the computer.
C)you can upload data from it.
D)it records information about light.
5.
Which of the following is not an example of a computer output unit?
A)video monitor
B)laser printer
C)scanner
D)ink-jet printer
6.
Machine language is based directly upon
A)sounds made by working machines.
B)analog signals.
C)digital binary code.
D)long strings of 0s, 1s and 2s.
7.
Which is not an example of an analog signal?
A)sound waves from a singer
B)fluctuating air pressure
C)intensity of natural light outdoors
D)"on" and "off" electrical pulses
8.
A microprocessor's work is based on the following three-step sequence:
A)decode, fetch, execute.
B)fetch, decode, execute.
C)execute, fetch, decode.
D)decode, execute, execute.
9.
The World Wide Web is a
A)consumer-oriented part of the Internet written in HTML.
B)type of local area network.
C)huge, unformatted nodal network.
D)tightly constructed network with defined center.
10.
An expert system is a
A)digital library reviewed by experts.
B)type of artificial intelligence that draws on stored knowledge of experts.
C)computer system designed to be used by experts.
D)virtual reality game for scientists.
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