Principles of Computing: Chapter 1 - Computers and Operating Systems
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Questions and Answers

What is the main goal of the chapter?

  • To list the parts of a computer
  • To define the term program
  • To explain the role of networking
  • To describe the importance of computers in today’s world (correct)

Which of the following is NOT a part of a computer?

  • Ports and Connections (USB, Firewire, etc.)
  • Expansion Cards (Video Card, Sound Card, or NIC) (correct)
  • Input Devices (Keyboard, Mouse, etc.)
  • Output Devices (Monitor, Speakers, etc.)

What is the primary role of an operating system?

  • To define the term program
  • To exercise common Unix commands
  • To explain what is meant by data
  • To manage the hardware components of a computer (correct)

Which field does the text NOT mention as a role of computers?

<p>Agricultural Field (B)</p> Signup and view all the answers

What are the primary hardware components of a computer?

<p>Central Processing Unit and memory (A)</p> Signup and view all the answers

What is the function of expansion cards like Video Card, Sound Card, or NIC?

<p>To enhance performance or functionality (C)</p> Signup and view all the answers

What is the function of the operating system in a computer?

<p>Instructs the computer on how to operate (D)</p> Signup and view all the answers

Which component of a computer converts AC power from the wall socket into DC?

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

What is the main function of a computer's central processing unit (CPU)?

<p>Executes a program, which is a sequence of stored instructions (B)</p> Signup and view all the answers

What is resistance measured in?

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

What is voltage?

<p>A measure of the force required to push electrons through a circuit (A)</p> Signup and view all the answers

What is power in electricity?

<p>Voltage multiplied by current (D)</p> Signup and view all the answers

What should you not do to a power supply?

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

Which component of a computer contains the buses, or electrical pathways found in a computer?

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

What is the main function of a computer case?

<p>Provides protection and support for internal components (D)</p> Signup and view all the answers

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