🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books

Computer Hardware Quiz 32 (10 MCQs)

This set of multiple-choice questions evaluates understanding of computer hardware components, including bus types like NuBus and Universal Serial Bus (USB), expansion cards, and the startup process. It covers the function of the power button, motherboard, and peripheral device connectivity. The questions also assess knowledge of input/output devices, network hardware, and optical fibre communications, including acousto-optic devices and regenerators.

Quiz Instructions

Select an option to see the correct answer instantly.

1. Computer system hardware don't include

Correct Answer: Correct answer is: (A) Exit device.

Exam Relevance: CompTIA A+, CCNA, CIW

Difficulty: Very Easy

Concept notes: Computer system hardware includes components such as the arithmetic logic unit, input devices, and output devices. An "exit device" is not a standard component of computer hardware.

Common Mistakes: A common misunderstanding might be confusing "exit device" with other hardware components like input or output devices.

Explanations: Computer hardware consists of essential components such as the arithmetic logic unit (ALU), input devices (e.g., keyboard, mouse), and output devices (e.g., monitor, printer). An "exit device" is not a recognized component of computer hardware.

Option Analysis:

Option A: Exit device is not a standard component of computer hardware.
Option B: Arithmetic logic unit is a core component of the central processing unit (CPU).
Option C: Input device is a standard component of computer hardware.
Option D: Output device is a standard component of computer hardware.

2. A(n) ..... printer is a type of nonimpact printer that forms characters and graphics by spraying tiny drops of liquid ink onto a piece of paper.

Correct Answer: Correct answer is: (C) Ink-jet.

Exam Relevance: CompTIA A+, CCNA, ITIL Foundation

Difficulty: Easy

Concept notes: An ink-jet printer is a type of nonimpact printer that forms characters and graphics by spraying tiny drops of liquid ink onto a piece of paper.

Common Mistakes: A common misunderstanding is that dot-matrix printers are also nonimpact printers, but they are impact printers that use pins to form characters and graphics.

Explanations: Ink-jet printers form characters and graphics by spraying tiny drops of liquid ink onto a piece of paper. This method of printing is nonimpact, meaning it does not use physical force to create the image on the paper. Ink-jet printers are widely used for their ability to produce high-quality text and graphics at a relatively low cost.

Option Analysis:

Option A: Plasma printers do not exist as a standard printer type.
Option B: Thermal printers use heat to transfer ink from a ribbon to the paper, not by spraying ink.
Option C: Ink-jet printers spray tiny drops of liquid ink onto paper to form characters and graphics.
Option D: Dot-matrix printers use pins to form characters and graphics, making them impact printers.

3. Geoff, a PC repair technician, was tasked with refurbishing a laptop so that it can be resold. As Geoff begins to troubleshoot and inspect the laptop, he notices that the laptop may need a new circuit board. Many of the components are not making any connection. What internal component would Geoff need to replace to restore this faulty laptop?

Correct Answer: Correct answer is: (B) The motherboard.

Exam Relevance: CompTIA A+, CCNA, ITIL Foundation

Difficulty: Moderate

Concept notes: The motherboard is the main circuit board of a computer that connects all the components together. If many components are not making any connection, it suggests a problem with the motherboard.

Common Mistakes: A common mistake is to assume that the power supply or hard drive is the issue when multiple components are not functioning. However, these components typically affect only specific parts of the system, not the entire connectivity.

Explanations: The motherboard is the central hub that connects all the components of a computer, including the CPU, RAM, and storage devices. If Geoff notices that many components are not making any connection, it indicates a problem with the motherboard. Replacing the motherboard would restore the faulty laptop's connectivity and functionality.

Option Analysis:

Option A: The power supply is responsible for providing power to the laptop, but it does not directly connect components. If the power supply were the issue, the laptop would not turn on at all.
Option B: The motherboard is the main circuit board that connects all components. If many components are not making any connection, the motherboard is likely the issue.
Option C: The CPU is the central processing unit, but it does not directly connect all components. If the CPU were the issue, it would affect processing, not connectivity.
Option D: The hard drive stores data but does not connect components. If the hard drive were the issue, it would affect data storage, not connectivity.

4. What step is required in starting a computer?

Correct Answer: Correct answer is: (C) Pressing the power button on.

Exam Relevance: CompTIA A+, CCNA, ITIL Foundation

Difficulty: Very Easy

Concept notes: The power button is the primary method to initiate the startup process of a computer.

Common Mistakes: A common misunderstanding is that other actions like pressing CTRL+ALT+DEL or using the mouse to select "Start" are necessary to start a computer.

Explanations: Pressing the power button is the essential step to start a computer. This action initiates the power supply to the hardware components, allowing the system to boot up and load the operating system.

Option Analysis:

Option A: Pressing CTRL+ALT+DEL is used to access the task manager or restart the computer, not to start it.
Option B: Using the mouse to select "Start" is an action performed after the computer has already started.
Option C: Pressing the power button is the correct step to start a computer.
Option D: Double-clicking the Internet Explorer icon is an action performed after the computer has started and the operating system is running.

5. All the computers on a network must be equipped with .....

Correct Answer: Correct answer is: (C) Network interface cards.

Exam Relevance: CCNA, CompTIA A+, Network+

Difficulty: Easy

Concept notes: Network interface cards (NICs) are essential hardware components that enable computers to connect to a network.

Common Mistakes: A common misunderstanding is that routers or other network devices are required on every computer, but only NICs are necessary for each individual computer to connect to a network.

Explanations: Network interface cards (NICs) are hardware components that provide a computer with the ability to connect to a network. They are necessary for each computer to communicate with other devices on the network. Circuit switching, synergy, and routers are not required on every individual computer for network connectivity.

Option Analysis:

Option A: Circuit switching is a method of establishing a dedicated communication channel, but it is not a hardware component required on every computer.
Option B: Synergy refers to the interaction or cooperation of multiple elements to produce a combined effect, but it is not a hardware component.
Option C: Network interface cards (NICs) are the correct answer as they are the hardware components required on each computer to connect to a network.
Option D: Routers are network devices that direct data traffic between networks, but they are not required on every individual computer.

Mnemonic: NICs Connect, Routers Route

6. Which of the following devices are less widely used in the field of optical fibre communications?

Correct Answer: Correct answer is: (A) Acousto-optic devices.

Exam Relevance: GATE, GRE, ECE exams

Difficulty: Moderate

Concept notes: Acousto-optic devices are less widely used in optical fibre communications compared to other devices like regenerators, reflectors, and optical translators.

Common Mistakes: A common misunderstanding is that acousto-optic devices are widely used in optical fibre communications due to their unique properties, but in practice, they are less common.

Explanations: Acousto-optic devices use the interaction between sound waves and light to modulate or deflect light beams. While they have specific applications, they are not as commonly used in optical fibre communications as other devices such as regenerators, which amplify and restore signals, reflectors, which redirect light, and optical translators, which convert optical signals into electrical signals and vice versa.

Option Analysis:

Option A: Acousto-optic devices are less widely used in optical fibre communications.
Option B: Regenerators are widely used to amplify and restore signals in optical fibre communications.
Option C: Reflectors are commonly used to redirect light in optical fibre systems.
Option D: Optical translators are used to convert optical signals into electrical signals and vice versa, making them widely used in optical fibre communications.

Mnemonic: AOD - Acousto-Optic Devices are less common.

7. Which of the following bus types are used by the Apple Macintosh computer?

Correct Answer: Correct answer is: (B) NuBus.

Exam Relevance: CompTIA A+, CIW, Apple Certified Support Professional

Difficulty: Moderate

Concept notes: The NuBus is a computer bus architecture that was used in Apple Macintosh computers, particularly in models from the late 1980s to the mid-1990s.

Common Mistakes: A common mistake is to confuse NuBus with other bus types like ISA, EISA, or MCA, which were used in IBM PC-compatible systems rather than Apple Macintosh computers.

Explanations: NuBus was specifically designed for Apple Macintosh computers and was used for expansion cards. It provided a high-speed interface for connecting peripherals and was a key component of the Macintosh architecture during its time. The other bus types listed (ISA, EISA, and MCA) were not used in Apple Macintosh computers.

Option Analysis:

Option A: ISA (Industry Standard Architecture) was used in IBM PC-compatible systems, not in Apple Macintosh computers.
Option B: NuBus was used in Apple Macintosh computers for expansion cards and peripherals.
Option C: EISA (Extended Industry Standard Architecture) was an extension of ISA and used in IBM PC-compatible systems, not in Apple Macintosh computers.
Option D: MCA (Micro Channel Architecture) was used in IBM PS/2 systems, not in Apple Macintosh computers.

8. These are hardware used to create and communicate with media, e.g. radios, computers, telephones, satellites, printing presses, etc.

Correct Answer: Correct answer is: (A) Technology.

Exam Relevance: Computer Science Exams, Information Technology Exams, Media Studies Exams

Difficulty: Easy

Concept notes: Technology refers to the tools, devices, and methods used to create and communicate with media. This includes hardware such as radios, computers, telephones, satellites, and printing presses.

Common Mistakes: A common misunderstanding is to confuse technology with media itself. Media refers to the content or the message, whereas technology refers to the tools used to create and distribute that content.

Explanations: The term "technology" encompasses the hardware and devices used to create and communicate with media. Examples include radios, computers, telephones, satellites, and printing presses. These devices are all part of the technological infrastructure that enables the creation and dissemination of media content.

Option Analysis:

Option A: Technology is the correct answer as it refers to the hardware and devices used to create and communicate with media.
Option B: Media refers to the content or message itself, not the tools used to create or distribute it.
Option C: Literacy refers to the ability to read and write, which is not directly related to the hardware used for media creation and communication.
Option D: Communication refers to the process of conveying information, but it does not specifically denote the hardware used for this process.

9. Consider the following Statements: One of the dangers of using a computer is using it too much for way too long without moving or thinking for myself. Speakers are considered an input device. A computer is an electronic device that manipulates information. Which of the following statement(s) is/are true?

Correct Answer: Correct answer is: (D) Only 1, 3.

Exam Relevance: CCNA, CompTIA A+, CIW

Difficulty: Moderate

Concept notes: The question tests understanding of computer hardware and usage habits.

Common Mistakes: A common mistake is to consider speakers as an input device, which is incorrect.

Explanations: Statement 1 is true because prolonged computer use without breaks can lead to physical and mental strain. Statement 2 is false because speakers are an output device, not an input device. Statement 3 is true because a computer is indeed an electronic device that manipulates information.

Option Analysis:

Option A: Incorrect because statement 2 is false.
Option B: Incorrect because statement 2 is false.
Option C: Incorrect because statement 2 is false.
Option D: Correct because statements 1 and 3 are true, and statement 2 is false.

10. This is a ubiquitous interface between a computer and a peripheral device such as a digital camcorder, digital camera, microphone, keyboard, or printer.

Correct Answer: Correct answer is: (A) USB.

Exam Relevance: CompTIA A+, CCNA, ITIL Foundation

Difficulty: Easy

Concept notes: USB (Universal Serial Bus) is a standard interface for connecting peripheral devices to a computer.

Common Mistakes: A common mistake is confusing USB with other types of interfaces like VGA or BNC, which are used for different purposes.

Explanations: USB is a widely used interface for connecting various peripheral devices such as digital cameras, keyboards, and printers to a computer. It provides a standardized way to connect and communicate with these devices, making it ubiquitous in modern computing environments.

Option Analysis:

Option A: USB is the correct answer as it is the most common interface for connecting peripheral devices to a computer.
Option B: VGA is a video interface used for connecting monitors and projectors, not for general peripheral devices.
Option C: BNC is a coaxial connector used primarily for video and networking equipment, not for general peripheral devices.
Option D: ILink (also known as IEEE 1394 or FireWire) is another interface for connecting devices, but it is less common than USB.

Mnemonic: USB: Universal Serial Bus

Frequently Asked Questions

What is the role of a motherboard in a computer?

The motherboard serves as the main circuit board of a computer, connecting and allowing communication between various hardware components such as the CPU, RAM, and storage devices.

How does a nonimpact printer like an ink-jet printer work?

An ink-jet printer uses liquid ink sprayed through tiny nozzles onto paper to create text and images, without physically striking the paper, making it a nonimpact printer.

What is the purpose of a network interface card (NIC) in a computer?

A network interface card enables a computer to connect to a network, facilitating communication and data transfer between the computer and other networked devices.

What is the function of an arithmetic logic unit (ALU) in a computer?

The arithmetic logic unit performs basic arithmetic and logical operations, such as addition, subtraction, and comparison, which are essential for processing data.

What is the boot process in a computer?

The boot process is the sequence of actions a computer performs when it is turned on, which includes loading the operating system and initializing hardware components.

🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books