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Fundamentals of Computer
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General Science
➤ Computer ➤ 3
Question 21
Q21.
The basic operations performed by a computer are
Arithmetic operation
Logical operation
Storage and relative
All the above
Question 22
Q22.
Storage which stores or retains data after power off is called ______ .
Non-volatile storage
Volatile storage
Direct storage
Sequential storage
Question 23
Q23.
Which key is used in combination with another key to perform a specific task ?
Function
Spacebar
Arrow
Control
Question 24
Q24.
What characteristic of read-only memory (ROM ) makes it useful?
Data in ROM is non volatile, that is, it remains there even without electrical power
ROM informationcan be easily updated
ROM provides very large amounts of inexpensive data storage
ROM chips are easily swapped between different brands of computers
Question 25
Q25.
Which of the following refers to a small, single-site network ?
LAN
DSL
RAM
USB
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