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Computer Fundamentals - Engineering

Q1:

The system unit of a personal computer typically contains all of the following except:

A microprocessor

B disk controller

C serial interface

D modem

E All of the above are contained

ANS:D - modem

Short for modulator-demodulator. A modem is a device or program that enables a computer to transmit data over, for example, telephone or cable lines. Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analog waves.