Understanding the basics of computer components and hardware is essential for anyone diving into the world of technology. Our article, Computer Components Hardware GK MCQs With Answer & Explanation in English, provides a comprehensive set of multiple-choice questions covering key hardware elements like processors, memory, storage, and input-output devices.
With detailed answers and explanations, this resource is perfect for students, tech enthusiasts, and competitive exam aspirants looking to strengthen their knowledge in computer hardware. Dive in and enhance your understanding with this engaging and informative guide!
1. What is the term for the performance of a hard drive or storage device in locating a file?
- Response Time
- Access Time
- Quick Time
- None of the above
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Answer: Access Time
Access time, also known as Hard Disk Access Time, refers to the time taken between initiating a data request and receiving the first bit of data from a storage device. It includes several components, such as seek time (the time it takes the read/write head to position itself over the data), rotational delay (the time it takes for the desired data to rotate under the read/write head), and transfer time (the time it takes to transfer the data once the read/write head is in position)
2. What is a unit of data storage that equals 2 to the 70th power called?
- Zebibyte
- Yottabyte
- Yobibyte
- None of the above
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Answer: Zebibyte
A zebibyte is a unit of data storage that equals 2 to the 70th power, which is equivalent to 1,180,591,620,717,411,303,424 bytes. Zebibytes are often used to measure large amounts of digital data, especially in the context of data storage capacities.
3. What is the generic name for Intel processors released after the original 8086 processor?
- Pentium
- x86
- Pentium 286
- None of these
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Answer: x86
The term x86 refers to a family of instruction set architectures developed by Intel based on the Intel 8086 microprocessor. x86 architectures are widely used in personal computers and laptops. They have evolved over the years and include various processor models such as the 80286, 80386, 80486, and the modern x86-64 architecture, which is commonly used in today’s computers.
4. What is V-RAM used for accessing?
- Video & Graphics
- Text & Images
- Programs
- None of the above
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Answer: Video & Graphics
Video RAM, often abbreviated as V-RAM, is a type of RAM specifically designed for storing graphical textures, 3D models, and temporary data related to video and graphics. It provides a high-speed memory buffer that allows the computer’s graphics card to rapidly access and display visual content on a monitor.
5. Which component can return any piece of data in constant time regardless of its location?
- RAM
- ROM
- CPU
- Network interface card
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Answer: RAM
RAM is a type of computer memory designed to provide constant-time access to any piece of data, regardless of its physical location within the memory. It is used to store data and programs that are actively being used by the computer while it is running. RAM is volatile memory, meaning its contents are lost when the computer is powered off or restarted.
6. What is the name of the digital circuit that performs arithmetic and logical operations in computers?
- Arithmetic Logic Unit
- Digital comparator
- Multiplexer
- None of these
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Answer: Arithmetic Logic Unit
The Arithmetic Logic Unit (ALU) is a digital circuit within a computer’s processor (CPU) responsible for performing arithmetic and logical operations. It executes instructions and calculations, including addition, subtraction, multiplication, division, and comparisons. The ALU plays a central role in processing data and performing computations.
7. Which key is not found in normal computers/laptops?
- Turn key
- Alt key
- Del key
- Shift key
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Answer: Turn key
The term “Turn Key” key is not found on standard computer or laptop keyboards. It is not a standard key symbol or function used in computing. Computer keyboards typically feature a standard layout of alphanumeric keys, function keys, and other special keys, but a “Turn Key” key is not part of this standard layout.
8. How much data does one kilobyte equal to?
- 1000 bytes
- 128 bytes
- 1024 bytes
- 1036 bytes
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Answer: 1024 bytes
One kilobyte (KB) is equivalent to 1024 bytes. This is a common unit of digital storage and data size used in computing. Kilobytes are often used to measure the size of files, documents, and data stored on computer systems.
9. Which component transforms input data into output data?
- Peripherals
- RAM
- ROM
- CPU
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Answer: CPU
The Central Processing Unit (CPU) is the primary component of a computer responsible for executing instructions and performing operations. It transforms input data into output data by processing instructions in a sequence determined by software programs.
10. Which device is considered volatile storage?
- RAM
- Hard disk
- Magnetic Tape
- Floppy disk
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Answer: RAM
RAM (Random-Access Memory) is a volatile storage medium that temporarily holds data while the computer is running.
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