Q68.
d
Section
7-2 Algorithms and programming
Answer
Explanation
Through repetition, the value of a changes as follows:
1st time: 8
2nd time: 16
3rd time: 32
4th time: 64
5th time: 128
Q69.
a
Section
8-2 System component
Answer
Explanation
Using a browser creates a uniform environment for all clients, so sharing and maintenance
work is reduced.
Q70.
a
Section
7-1 Basic theory
Answer
Explanation
VHS video images are analog data, requiring conversion into digital data when saving to
DVD. BMP images and MPEG color videos and audio stored on magnetic disks are all digital
data, so they can be stored and output as is.
Q71.
d
Section
8-1 Computer component
Answer
Explanation
CPU caches are called primary and secondary caches according to the order in which they are
accessed. There is no difference in the speed at which primary and secondary caches are accessed, and both increase the speed at which the CPU and main memory are accessed.
Q72.
b
Section
8-4 Hardware
Answer
Explanation
A general purpose computer is designed for use with office functions and scientific computation. It is used in systems such as train seat reservation systems and online banking systems.
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