Computer Knowledge
Computer Hardware Devices
1,004 Questions
Computer Hardware Devices focuses on the physical components of a computer system, including input, output, and memory devices. It tests practical understanding of ports, displays, and peripheral technologies. This topic is common in the computer knowledge section of banking and SSC exams.
Input output devicesMonitor settingsComputer portsAssistive technologyHardware components
Computer Hardware Devices Questions
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Ball
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Roller
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Optical encoding disk
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PS/2
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Infrared LED and sensor
D
Correct answer
Explanation
It is not a component of mouse since it is a mouse connector.
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Mouse
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Keyboard
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Hard disk
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Numeric Keypad
B
Correct answer
Explanation
The answer is correct because on the keyboard after numeric keys, the alphabet keys stated in which starting six letters are QWERTY.
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Mouse
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Plotter
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Punch card
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Joystick
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Touch panel
B
Correct answer
Explanation
A plotter is a printer that interprets commands from a computer to make line drawings on a paper.
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Modem
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Keyboard
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Plotter
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Modulator
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None of these
D
Correct answer
Explanation
Modulator is a device that is responsible for conversion of signals.
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OMR
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Punch card reader
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Optical scanner
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Magnetic tape
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Printer
A
Correct answer
Explanation
Optical mark recognition (OMR) captures human marked data from document forms such as documents or tests.
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Monitor
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Keyboard
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Mouse
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Touch Screen
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Projector
D
Correct answer
Explanation
Touch Screen works as both an input as well as an output device. A touch screen is a computer display screen that is an input device. Because it takes input from the user as well as gives output to the user. Hence, this option is correct.
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keyboard
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mouse
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printer
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scanner
D
Correct answer
Explanation
A scanner optically scans images, documents, or objects and converts them into digital data that a computer can store and process. Unlike input devices like keyboard and mouse which capture text/commands, a scanner captures visual information. Printer is an output device, not an input device.
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IBM
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Dell
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Xerox
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Warner Bros
C
Correct answer
Explanation
Xerox's Palo Alto Research Center (PARC) developed the modern computer mouse in the 1970s, which was then commercialized by Apple. While IBM and Dell are major computer companies, and Warner Bros is an entertainment company, neither developed the original mouse technology. Xerox PARC was responsible for many computing innovations including the graphical user interface and ethernet.
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REGISTER
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QUIT
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ENTER
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TRACE
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GO
D
Correct answer
Explanation
This debugger command is used in a microprocessor to trace the program that executes the program step by step.
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LOOPNE
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LOOPE
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LOOPZ
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LOOPNZ
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LOCK
B
Correct answer
Explanation
LOOPE - LOOP while Equal
This conditional loop in x86 performs jump to the specified label if CX is not equal to zero while an equal condition exists (ZF = 1).
B
Correct answer
Explanation
This instruction is encountered by microprocessor at the end of subroutine due to which it returns the control to the main program.
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Disk
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Cursor
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Hardware
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Interface
B
Correct answer
Explanation
The cursor is the visual indicator on the screen that shows where the next interaction or text entry will occur. While a mouse is the physical device used to move it, the cursor itself indicates the position.
C
Correct answer
Explanation
A mouse is a handheld input device that allows users to control the movement of a cursor on a computer screen. It was originally connected via a wire, though wireless versions are now common.
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Software
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Hardware
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Both (1) and (2)
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None of these
B
Correct answer
Explanation
Hardware refers to the physical, tangible components of a computer system. This includes electronic parts like the CPU and motherboard, as well as mechanical parts like the casing and keyboard.
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input device
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output device
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pointing device
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None of these
C
Correct answer
Explanation
A light pen is a light-sensitive pointing device used to select or draw objects on a computer's display. While it is an input device, 'pointing device' is the more specific classification provided in the options.