Chapter 3: Personal Computers in the Learning Environment

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Chapter 3Personal Computers in the Learning
Environment

• Annette Arnold
• ETEC 562
• September 14, 2005

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Chapter Review

• Major components of the computing cycle
• Difference between software and hardware
• Difference between memory and storage both
  necessary
• What is the CPU?
• Difference between input and output devices
• How viruses are transmitted
• Questions/Answers

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Computing Cycle
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Software/Hardware

• Operating system
• Word Processing
• Spreadsheets
• Database
• Presentation Software

• Mouse
• Keyboard
• Monitor
• Printer
• CPU
• Storage

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Memory/Storage

• ROM
• RAM

• Hard Disks
• Floppy Disks
• Removable hard disks
• CDs
• DVDs

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What is the CPU?

• Central Processing Unit
• All computer components are ultimately
  interconnected through and coordinated by the
  CPU pg 87
• Faster better
• Load into RAM

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Input/Output Devices

• Keyboard
• Pointing device
• Mouse
• Trackball
• Joystick
• Touchpad

• Monitor
• soft copy
• Printer
• Hard copy

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Viruses

• Attach to files on floppy disks
• Copied to next computer
• Antivirus program

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Questions/Answers

• What are the four major components of the
  computing cycle and why it is important that
  teachers know this information?
• What is a computer virus, how is it transmitted,
  and what can you do to protect your classroom?
• What is the difference between hardware and
  software, and give an example of each?