Week 3
Storage Devices of a Computer System

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This week students learn about storage devices of a computer system.

 Teacher Notes - Time: 10 Minutes
  • Complete last weeks home work:

    List some other uses for computers or items which use computers which we have not already discussed in class.
    Try to come up with at least 4 other uses or items. Make sure you explain why you think it is a computer and explain what the computer is doing.
  • Write notes on the parts parts of a computer, input devices, and output devices.
  • Make a list of 3 topics which you would like to explore during these classes.

 Teacher Notes - Time: 60 Minutes
  • Ask the question “Can you name some storage devices of a computer system?”

    -as the class comes up with items, discuss what they are, touch them, and write them on the board as appropriate (include size, speed, random or sequential access)
  • After the basics are listed, hand out the diagram and work through filling it in:
    ............Floppy Disk (600 - 700 pages, slow, random access)
    ..................................CD-ROM
    (300,000 pages, slow, random)
    ............Hard Disk (40,000 - 600,000+ pages, fast, random)
    .............Tape
    (25,000 -2,500,000 pages, slow, sequential)
    ..........Memory Chips
    ..................RAM (2,000 - 8,000 pages, fast, random)
    ..................ROM (250 pages, fast, random)

 Handout
 

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