Computer Hardware Quiz
Embark on a journey through the realm of computer hardware with our engaging Computer Hardware Quiz! From monitors to memory, CPUs to storage, this quiz challenges your understanding of essential components. Explore questions about binary representation, logic gates, and device functionalities. Whether you're a tech enthusiast or a beginner, this quiz offers an exciting opportunity to assess and expand your knowledge.
Delve into the intricacies of hardware configurations and gain insights into the digital world. Challenge yourself, learn something new, and emerge with a deeper understanding of the backbone of computing. Get ready to unravel the mysteries of computer hardware Read more– your gateway to a digital adventure!
Computer Hardware Questions and Answers
- 1.
A CRT monitor stands for "Cathode Ray Tube."
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
CRT stands for Cathode Ray Tube. It’s a technology used in traditional computer monitors and televisions. The image on a CRT display is created by firing electrons from the back of the tube to the front where they strike a phosphorescent surface. This technology has been largely replaced by LCD and LED technologies, which are more energy-efficient and offer sharper images.Rate this question:
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- 2.
A CRT monitor is sharper than a LCD monitor.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
While CRT monitors can have excellent color and contrast, LCD monitors have a sharper image due to their higher pixel density. Pixel density is the number of pixels per inch (PPI) on the screen. A higher pixel density allows for more detail to be shown on the screen, resulting in a sharper image.Rate this question:
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- 3.
Which of these monitors emit the most heat?
- A.
LCD
- B.
LED
- C.
CRT
- D.
TV
Correct Answer
C. CRTExplanation
CRT monitors generate more heat than LCD and LED monitors because they use more power. This is due to the way CRT technology works, which involves firing electrons at a phosphorescent screen. This process generates a lot of heat. On the other hand, LCD and LED monitors use less power and thus generate less heat.Rate this question:
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- 4.
Which of these devices would not be standard on a new build desktop PC?
- A.
Monitor
- B.
Speakers
- C.
Printers
- D.
Keyboard
- E.
Mouse
- F.
Optical Mark Reader
Correct Answer(s)
C. Printers
F. Optical Mark ReaderExplanation
These are peripherals that aren’t typically included with a new desktop PC. Printers are often purchased separately based on the specific needs of the user. An Optical Mark Reader (OMR) is a specialized piece of equipment used to read marked data on a document, like a multiple-choice test. This is not a standard device for a typical PC user.Rate this question:
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- 5.
Which of these devices could be used by someone who is mobility impaired from the neck down?
- A.
Foot Mouse
- B.
Eye Typer
- C.
Braille Keyboard
- D.
Both A and B
Correct Answer
D. Both A and BExplanation
Foot Mouse and Eye Typer. These devices are designed to be used by people with limited mobility. A foot mouse is a type of mouse that can be operated with the feet, and an eye typer is a device that allows a person to type using eye movements. These devices can be very helpful for people who have mobility impairments.Rate this question:
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- 6.
How much can a CD storage device typically hold?
- A.
1gb
- B.
650mb
- C.
4gb
- D.
256mb
Correct Answer
B. 650mbExplanation
A standard CD-ROM can hold 650MB of data. This is less than a DVD, which can hold up to 4.7GB of data, and much less than a Blu-ray disc, which can hold up to 25GB of data on a single-layer disc and 50GB on a dual-layer disc.Rate this question:
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- 7.
Which of these devices are portable storage devices?
- A.
USB Flash drive
- B.
CD
- C.
Internal Hard Disk Drive
- D.
DVD
Correct Answer(s)
A. USB Flash drive
B. CD
D. DVDExplanation
USB Flash drive and CD and DVD. These are all types of portable storage. An Internal Hard Disk Drive is not typically portable because it is designed to be installed inside a computer. However, external hard drives are portable and can hold much more data than CDs, DVDs, or USB flash drives.Rate this question:
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- 8.
Large organizations use "Magnetic Tapes" to store data.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
True. Many large organizations use magnetic tapes to store data because they are cost-effective for large amounts of data. Magnetic tape storage is also very durable and can last for many years if stored properly.Rate this question:
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- 9.
What is the Binary representation of the decimal number "77"?
- A.
01001111
- B.
01001101
- C.
01011011
- D.
01011101
Correct Answer
B. 01001101Explanation
01001101 is the binary representation of the decimal number 77. In binary, the rightmost digit represents 2^0 (or 1), the next digit to the left represents 2^1 (or 2), the next represents 2^2 (or 4), and so on. So, to convert 01001101 to decimal, you would calculate 0*2^7 + 1*2^6 + 0*2^5 + 0*2^4 + 1*2^3 + 1*2^2 + 0*2^1 + 1*2^0 = 77.Rate this question:
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- 10.
What decimal number does the "01010011" byte give?
- A.
84
- B.
81
- C.
83
- D.
82
Correct Answer
C. 83Explanation
83. The binary number 01010011 represents the decimal number 83. Using the same method as above, you would calculate 0*2^7 + 1*2^6 + 0*2^5 + 1*2^4 + 0*2^3 + 0*2^2 + 1*2^1 + 1*2^0 = 83.Rate this question:
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- 11.
Half a Byte is called ________
Correct Answer
nibbleExplanation
Half a Byte is called a nibble and it contains 4 bits. A bit is the most basic unit of information in computing and digital communications. The name is a portmanteau of binary digit. The bit represents a logical state with one of two possible values. These values are most commonly represented as either “1” or “0”.Rate this question:
- 12.
What base numbering system do computers use?
- A.
Base 1
- B.
Base 2
- C.
Base 10
- D.
Base 16
Correct Answer
B. Base 2Explanation
Computers use a base 2, or binary, numbering system. This is because at the most fundamental level, computers use transistors, which have two states: on and off. These two states are represented by the numbers 1 (on) and 0 (off).Rate this question:
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- 13.
A typical size of a CPU on a desktop computer would be:
- A.
800mhz
- B.
200mhz
- C.
3Ghz
- D.
1ghz
Correct Answer
C. 3GhzExplanation
A typical CPU speed for a modern desktop computer would be around 3Ghz. The speed of a CPU, or clock speed, refers to the number of cycles the CPU can perform per second. A higher clock speed means the CPU can perform more cycles per second, which means it can process data more quickly.Rate this question:
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- 14.
During the "Fetch Stage" the CPU gets information from:
- A.
Main Memory
- B.
Keyboard
- C.
Graphics Card
- D.
USB
Correct Answer
A. Main MemoryExplanation
Main Memory. During the fetch stage, the CPU gets information from the main memory. This is part of the fetch-decode-execute cycle, which is the process that the CPU uses to execute instructions.Rate this question:
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- 15.
A ________ contains 8 bits.
Correct Answer
byteExplanation
A byte contains 8 bits. This is a standard unit of data in computer systems and is the amount of data that most computers process at a time.Rate this question:
- 16.
What is the name given to table which lists the results of a combination of inputs?
- A.
Logic Table
- B.
Truth Table
- C.
AND OR IF table
- D.
Gates Table
Correct Answer
B. Truth TableExplanation
A truth table is a table that lists all possible combinations of inputs and their corresponding outputs in a logical system. It is used to determine the truth value of a compound statement based on the truth values of its individual components. In this case, the table is used to list the results of a combination of inputs, making "Truth Table" the correct answer.Rate this question:
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- 17.
What hardware has been designed to carry out the logic operations within the computer?
- A.
Binary Switch
- B.
Binary Gate
- C.
Logic Gate
- D.
Logic Switch
Correct Answer
C. Logic GateExplanation
Logic gates are electronic devices that perform logic operations, such as AND, OR, and NOT, which are fundamental to the functioning of a computer. These gates are designed to process binary inputs and produce binary outputs based on the logical rules they follow. Therefore, logic gates are specifically designed hardware components that carry out the logic operations within a computer. Binary switches and gates are not specific to logic operations, and a logic switch is not a commonly used term in computer hardware.Rate this question:
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- 18.
The OR logical operation would be written as OR = A + B.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The OR logical operation can be written as OR = A + B. This means that if either A or B is true (or both), then the result is true.Rate this question:
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- 19.
The AND logical operation would be written as AND = A +B.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The given statement suggests that the AND logical operation is represented by the expression "AND = A + B". This is incorrect because the correct representation for the AND logical operation is "AND = A * B". In the AND operation, the output is true only when both inputs are true. Using the "+" symbol suggests that the operation is a logical OR instead. Therefore, the correct answer is False.Rate this question:
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- 20.
Which of these are valid gates?
- A.
AND
- B.
NOR
- C.
EXOR
- D.
NAND
Correct Answer(s)
A. AND
B. NOR
C. EXOR
D. NANDExplanation
AND, NOR, EXOR, and NAND are all valid gates in digital logic. These gates are used to perform logical operations on binary inputs. - AND gate outputs true only when both of its inputs are true. - NOR gate outputs true only when both of its inputs are false. - EXOR gate outputs true when the number of true inputs is odd. - NAND gate outputs false only when both of its inputs are true. These gates are fundamental building blocks in the design of digital circuits and are widely used in various electronic devices and systems.Rate this question:
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- 21.
What does ROM stand for?
- A.
Random Order Memory
- B.
Read Only Memory
- C.
Random OR Memory
- D.
Radial Order Memory
Correct Answer
B. Read Only MemoryExplanation
ROM stands for Read Only Memory. It is a type of computer memory that stores data permanently and cannot be modified or erased by normal computer operations. The data stored in ROM remains intact even when the computer is turned off. This type of memory is commonly used to store firmware, which is the software that is permanently programmed into a device. ROM is non-volatile and provides secure storage for important system instructions and data that should not be changed.Rate this question:
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- 22.
The more ROM you have, the faster your applications would open?
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Having more ROM (Read-Only Memory) does not affect the speed at which applications open. ROM is a type of memory that stores permanent data and instructions for the computer to boot up. It is not directly related to the speed of opening applications. The speed at which applications open is primarily determined by the processing power of the device and the efficiency of the software.Rate this question:
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- 23.
What does RAM stand for?
- A.
Random Access Memory
- B.
Radial Access Memory
- C.
Raid Attribute Memory
- D.
Render Attribute Memory
Correct Answer
A. Random Access MemoryExplanation
RAM stands for Random Access Memory. It is a type of computer memory that allows data to be stored and retrieved by the computer's processor quickly and efficiently. Unlike other types of memory, such as hard disk drives or solid-state drives, RAM is volatile, meaning that its contents are lost when the computer is powered off or restarted. RAM is essential for the smooth operation of a computer as it provides temporary storage for data and instructions that are actively being processed by the CPU.Rate this question:
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- 24.
If someones PC was crashing, what advice would you first give to help the user?
- A.
Install more RAM
- B.
Increase your virtual memory
- C.
Get a faster CPU
- D.
Use less applications at one time
Correct Answer
D. Use less applications at one timeExplanation
If a PC is crashing, it might be due to overuse of resources. Using fewer applications at once can help. This is because each open application uses some of the computer’s resources (like RAM and CPU cycles). If too many applications are open at once, the computer may not have enough resources to keep everything running smoothly.Rate this question:
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- 25.
Which of the following RAM configurations would be correct to fit on a motherboard?
- A.
2 x 2gb
- B.
1 512kb and 1 1gb
- C.
1 256mb and 2 1gb
- D.
2 512kb and 4 1gb
Correct Answer
A. 2 x 2gbExplanation
This would be a correct RAM configuration for a motherboard. Most motherboards have multiple slots for RAM, and it’s often best to fill all the slots with matching sticks of RAM to take advantage of dual-channel (or even triple-channel or quad-channel) memory performance.Rate this question:
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- 26.
Which of these is not an input device?
- A.
Mouse
- B.
Printer
- C.
Keyboard
- D.
Touchpad
Correct Answer
B. PrinterExplanation
A printer is not an input device because it is used to produce hard copies of documents or images, rather than to input data or commands into a computer system. Input devices are tools or peripherals that allow users to enter data or interact with a computer system, such as a mouse, keyboard, or touchpad.Rate this question:
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- 27.
OMR stands for:
- A.
Optical Mark Reader
- B.
Optical Mark Recognition
- C.
Official Meter Reading
- D.
Optical Mark Radar
Correct Answer
A. Optical Mark ReaderExplanation
OMR stands for Optical Mark Reader, which is a technology used to detect and analyze marks made on a paper. It is commonly used in applications such as multiple-choice exams, surveys, and ballots. The OMR technology uses a scanner to capture images of the marked areas and then processes the data using optical character recognition algorithms to interpret the marks. Therefore, the correct answer is Optical Mark Reader.Rate this question:
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- 28.
How many forms can an OCR Reader read per hour (typically)?
- A.
2000
- B.
5000
- C.
7000
- D.
10000
Correct Answer
C. 7000Explanation
An OCR reader can typically read around 7000 forms per hour. OCR stands for Optical Character Recognition, and it is a technology that can convert different types of documents, such as scanned paper documents, PDF files or images captured by a digital camera, into editable and searchable data.Rate this question:
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- 29.
Which of these printers would be suitable for an office environment?
- A.
Office Inkjet
- B.
Office Laser Printer
- C.
Dot Matrix Printer
- D.
Plotter
Correct Answer
B. Office Laser PrinterExplanation
An office laser printer would be suitable for an office environment because it offers faster printing speeds, higher print quality, and more efficient performance compared to the other options. Laser printers use a laser beam to produce high-resolution prints, making them ideal for printing documents, reports, and other office materials. They are also capable of handling large volumes of printing tasks, making them a practical choice for an office setting where productivity and efficiency are important.Rate this question:
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- 30.
What is the primary function of a computer’s GPU (Graphics Processing Unit)?
- A.
Render images and videos
- B.
Perform calculations for applications
- C.
Manage the computer’s memory
- D.
Control input and output devices
Correct Answer
A. Render images and videosExplanation
The GPU is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device. GPUs are used in embedded systems, mobile phones, personal computers, workstations, and game consoles. Modern GPUs are very efficient at manipulating computer graphics and image processing, and their highly parallel structure makes them more efficient than general-purpose CPUs for algorithms where the processing of large blocks of data is done in parallel. In a personal computer, a GPU can be present on a video card or embedded on the motherboard. In certain CPUs, they are embedded on the CPU die.Rate this question:
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Jan 22, 2024Quiz Edited by
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Oct 16, 2011Quiz Created by
Rb06
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