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Cardinal Spellman High SchoolComputer Science Department
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Cardinal Spellman High SchoolComputer Science Department

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  1. ← All courses
  2. Computer Science
  3. Practice

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  1. Unit 1: Computer Hardware
    1. What Makes a Computer?
    2. Four Jobs of a Computer
    3. Data and Information
    4. CPU, RAM, and Storage
    5. Devices and Ports
    6. Choosing Hardware
    7. Hardware Review
  2. Unit 2: Computer and Internet Basics
    1. The Five Roles
    2. The Request Trip
    3. Local, Remote, and the Cloud
    4. Unit Review
  3. Unit 5: Digital Representation and File Management
    1. Only Two Choices: Bits and Switches
    2. Counting in Binary
    3. Same Bits, Different Meaning
    4. Pictures, Sound and Size
    5. Adding in Binary
    6. Binary Review

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  1. Question: What should you do before comparing several files with available space?

    Answer: Add the file sizes, then compare their total with the available space.

  2. Question: Must every program do the four jobs exactly once in order?

    Answer: No. The jobs describe roles. A program may repeat input and output before saving.

  3. Question: The equipment card does not say whether a connection supports your task. What should you do?

    Answer: Ask your teacher instead of assuming an adapter will solve it.

  4. A paper notebook electronically runs the instructions written in it.

    False. It keeps writing but does not electronically carry out a program.

  5. If compatibility information is missing, you should assume an adapter will fix the problem.

    False. Ask your teacher. Do not assume an adapter will solve it.

  6. Reopening the intended file helps check the saved copy.

    True. Check save status and reopen the correct file rather than trusting the visible edit.

  7. Responding to controls is one action of the game console in this lesson.

    True. The console follows game instructions and responds to controls.

  8. A program can take input only once before it must save.

    False. Input and output can happen many times before saving.

  9. Question: A program checks whether a club total is greater than 20. Which job is that?

    Answer: Processing. The program compares values.

  10. Question: What is information?

    Answer: Meaning obtained by interpreting data in context.

Unit 1: Computer Hardware