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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

Double-sided DVD can store?
9.4 GB
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Which memory is used to store BIOS in computers?
ROM/Flash
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The capacity of primary memory compared to secondary is?
Smaller
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Which type of memory is used in graphics cards (GPU)?
GDDR
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Which of the following is hardware?
CPU
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Software that manages hardware resources is called?
System software
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The brain of a computer is?
CPU
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ALU stands for?
Arithmetic and Logic Unit
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The Control Unit (CU) of a CPU is responsible for?
Directing operations of processor
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Firmware is?
Software on ROM
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Open source software means?
Source code is publicly available
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The motherboard connects?
All components of a computer
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BIOS stands for?
Basic Input Output System
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Which port is commonly used to connect USB devices?
USB port
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PCI stands for?
Peripheral Component Interconnect
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The clock speed of a CPU is measured in?
GHz
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Which component stores data permanently even without power?
HDD/SSD
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GPU stands for?
Graphics Processing Unit
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A multi-core processor has?
Multiple processing units on a single chip
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Shareware is?
Trial software with limited features or time
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Which of the following manages file operations in an OS?
File system
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Plug and Play (PnP) refers to?
Automatic hardware detection and configuration
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HDMI stands for?
High Definition Multimedia Interface
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Which bus carries memory addresses?
Address bus
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The data bus width determines?
Amount of data transferred at once
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SMPS stands for?
Switched Mode Power Supply
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Which protocol is used by USB?
USB protocol stack
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A NIC (Network Interface Card) is used for?
Connecting to network
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Which of the following is NOT hardware?
Antivirus software
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The fetch-decode-execute cycle is performed by?
CPU
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Computer Fundamentals → Number System 2

Terabyte is equal to?
1024 GB
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A petabyte is equal to?
1024 TB
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Computer Fundamentals → Software and Hardware 6

Which of the following is system software?
Windows OS
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A compiler converts?
High-level to machine language (whole program)
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An interpreter translates code?
Line by line during execution
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Which of the following is application software?
MS Excel
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Which of the following is utility software?
Disk defragmenter
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Which software type does NOT require a license purchase?
Freeware
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Computer Fundamentals → Operating System Basics 1

Which is NOT an open-source operating system?
Windows 11
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Computer Fundamentals → Memory Units 1

64-bit processors can address how much RAM theoretically?
16 EB
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