Computer Hardware Basics

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Questions and Answers

What is the primary function of the Power Supply Unit (PSU) in a computer?

  • To display the results of computer processing
  • To store data and programs
  • To provide a consistent and regulated power supply to the components (correct)
  • To convert DC power to AC power

What type of devices allow users to input data and commands into the computer?

  • Output devices
  • Input devices (correct)
  • Peripheral devices
  • Storage devices

What is the main advantage of Solid-State Drives (SSDs) over Hard Disk Drives (HDDs)?

  • Faster data access speeds (correct)
  • Better durability
  • Lower cost
  • Larger storage capacities at a lower cost

What is the primary purpose of peripheral devices in a computer system?

<p>To enhance the functionality of the computer (B)</p> Signup and view all the answers

What type of devices are used to store data and programs in a computer system?

<p>Storage devices (D)</p> Signup and view all the answers

What is the main difference between Hard Disk Drives (HDDs) and Solid-State Drives (SSDs)?

<p>HDDs use spinning disks and magnetic heads to read and write data (A)</p> Signup and view all the answers

What is the primary function of the most significant bit in the two's complement representation?

<p>To indicate the sign of the number (C)</p> Signup and view all the answers

What is the total number of possible characters that can be represented using ASCII?

<p>128 (A)</p> Signup and view all the answers

What is the primary purpose of character encoding schemes such as ASCII?

<p>To ensure consistent data processing and exchange (D)</p> Signup and view all the answers

In which type of endianess system is the most significant byte stored at the lowest memory address?

<p>Big-endian (A)</p> Signup and view all the answers

What is the advantage of using two's complement representation for arithmetic operations?

<p>It is more efficient for performing arithmetic operations (A)</p> Signup and view all the answers

What is the term used to describe the order in which bytes are stored in computer memory?

<p>Endianess (C)</p> Signup and view all the answers

What is the primary goal of encapsulation in Object-Oriented Programming?

<p>To provide data hiding and abstraction (D)</p> Signup and view all the answers

What type of programming error occurs when the code violates the rules of the programming language?

<p>Syntax error (A)</p> Signup and view all the answers

Which of the following is a benefit of using Object-Oriented Programming?

<p>Easier maintenance and code reuse (C)</p> Signup and view all the answers

What technique involves examining the code for logical inconsistencies and potential errors?

<p>Code review (B)</p> Signup and view all the answers

What is the purpose of a class in Object-Oriented Programming?

<p>To provide a blueprint for creating objects (C)</p> Signup and view all the answers

What is the term for the ability of objects to interact with each other through well-defined interfaces?

<p>Abstraction (D)</p> Signup and view all the answers

What is the primary reason for computers using the binary system?

<p>It aligns with the underlying electronic nature of computers (A)</p> Signup and view all the answers

What is the purpose of converting numbers between different bases?

<p>To provide a more compact representation of data (B)</p> Signup and view all the answers

What is the benefit of using the two's complement method?

<p>It allows for efficient arithmetic operations on signed numbers (A)</p> Signup and view all the answers

What is the advantage of using hexadecimal in programming?

<p>It provides a more compact representation of binary data (A)</p> Signup and view all the answers

What is the process of converting binary to hexadecimal?

<p>Grouping binary digits into sets of four and replacing each set with its corresponding hexadecimal digit (D)</p> Signup and view all the answers

What is the primary factor in choosing a storage technology?

<p>Balancing factors such as speed, capacity, and cost (A)</p> Signup and view all the answers

What is the primary function of a subnet mask?

<p>To determine the network address (C)</p> Signup and view all the answers

At which layer of the network protocol stack does a switch operate?

<p>Data link layer (A)</p> Signup and view all the answers

What is the main difference between a switch and a router?

<p>Switches are used for forwarding data packets within a network, while routers are used for forwarding data packets between networks (C)</p> Signup and view all the answers

What is the purpose of IP addresses?

<p>To enable devices to communicate with each other over the internet (A)</p> Signup and view all the answers

What is the main function of a router?

<p>To forward data packets between different networks (C)</p> Signup and view all the answers

What are the two main types of IP addresses?

<p>Private and public (A)</p> Signup and view all the answers

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