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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Pixels
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Color
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Graphics
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Text
A
Correct answer
Explanation
Screen resolution is defined by the number of pixels displayed horizontally and vertically on the screen.
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COM
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CDROM
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MICR
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None of the above
A
Correct answer
Explanation
COM usually refers to a serial communication port or a command file extension, not a data entry device. CDROM is a storage medium, and MICR (Magnetic Ink Character Recognition) is a specialized data entry technology used in banking.
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For data processing in a restaurant
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When mouse is used as the main input device
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When data has to be imported from a spreadsheet
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When it is difficult for the user to remember all the options available and for typing in complicated commands
D
Correct answer
Explanation
Menu interfaces are ideal for users who are not familiar with complex command-line syntax, as they provide a visual list of available options, reducing the memory load.
C
Correct answer
Explanation
MICR (Magnetic Ink Character Recognition) is the technology specifically used for reading characters printed with magnetic ink, commonly found on bank cheques. Other options like VDU, Keyboard, or OCER do not serve this specific purpose for cheque processing.
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mouse
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logo
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hand
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palm
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cursor
E
Correct answer
Explanation
The cursor is the visual indicator on a screen that shows where the next character or action will occur.
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is used to increase effective bus bandwidth
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uses protocol in which bus is released while memory access takes place
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time to complete one transfer will take little more time
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all of these
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Webcams
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Printer
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Speakers
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Headphones
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Plotters
A
Correct answer
Explanation
Webcam is an input device.
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Dedicated bus
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Mouse
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Keyboard
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Dumb terminal
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Joystick
D
Correct answer
Explanation
Dumb terminal is an output device. It stores the data received from the CPU, but does not process it.
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microphones
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headphone
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earphones
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phone
A
Correct answer
Explanation
A microphone is the input device used to capture audio or voice commands to communicate with a computer.
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phablet
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desktop
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tablet
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smartphone
B
Correct answer
Explanation
A desktop computer is designed for stationary use at a desk or table and is not portable, meaning it cannot be classified as a mobile device, unlike smartphones, tablets, and phablets.
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airplane mode
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charging it
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having multiple tabs open at once
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playing on it for hours
A
Correct answer
Explanation
Airplane mode disables wireless communications (Wi-Fi, cellular, Bluetooth), which reduces the power consumption and processing load on the device, helping to prevent overheating.
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When you use all your fingers and don’t look at the keyboard
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When you touch the computer without looking
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When you type the word touch
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When you use one of your fingers to type
A
Correct answer
Explanation
Touch typing is a method of typing that relies on muscle memory, using all fingers to type without looking at the keyboard.
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Mouse
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Keyboard
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Monitor
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Tower CPU
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Mouse
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Keyboard
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Monitor
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Tower CPU
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Mouse
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Keyboard
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Monitor
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Tower CPU