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GK One-Line Question & Answer

15541+ short questions with short answers, covering every category and sub-category on the site — no long articles to scroll through. Good for a fast recap before an exam, or a few minutes of daily practice.

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Computer Fundamentals → Introduction to Computer 30

Which component generates the most heat in a computer?
CPU
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Device drivers are which type of software?
System
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Which port type was used for parallel printers?
Centronics/DB25 parallel port
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RISC stands for?
Reduced Instruction Set Computer
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CISC stands for?
Complex Instruction Set Computer
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The power button on a laptop is?
Input device
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Which connector is used for modern graphics cards?
PCIe x16 slot
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Overclocking refers to?
Running CPU above rated speed
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Which of the following converts AC to DC for computer components?
SMPS
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A virus requires which of the following to spread?
Host program
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Which software manages CPU scheduling?
OS Scheduler
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Proprietary software means?
Owned and controlled by developer
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Which of these is an example of embedded software?
Software in a microwave oven
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Throughput of a CPU is measured in?
MIPS or FLOPS
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What is the decimal equivalent of binary 1010?
10
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ASCII stands for?
American Standard Code for Information Interchange
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How many bits are used in standard ASCII?
7
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Unicode uses how many bits in UTF-8 minimum?
8
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Binary 11111111 is equal to what decimal value?
255
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Convert decimal 25 to binary?
11001
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BCD stands for?
Binary Coded Decimal
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In 2's complement, how is -1 represented in 8-bit binary?
11111111
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The decimal value of octal 17 is?
15
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EBCDIC stands for?
Extended Binary Coded Decimal Interchange Code
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The 1's complement of binary 1010 is?
0101
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How many bytes does Unicode UTF-32 use per character?
4
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Binary addition: 1 + 1 = ?
10
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The most significant bit (MSB) is located at?
Leftmost position
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How many different values can 8 bits represent?
256
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Which encoding supports all world languages?
Unicode
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Computer Fundamentals → Computer Security 2

Malware is?
Malicious software
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Which of the following is NOT malware?
Firewall
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Computer Fundamentals → Number System 8

The binary number system uses how many digits?
2
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Hexadecimal number system has a base of?
16
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Which letter represents the decimal value 10 in hexadecimal?
A
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The decimal value of hexadecimal FF is?
255
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The octal number system has a base of?
8
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Hexadecimal 1A in decimal is?
26
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Which number system is most natural for computers?
Binary
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Decimal 100 in hexadecimal is?
64
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