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Computer Systems, Input, Output and Storage Devices

What you need to know:
The different types of computer systems, input and output devices and how they work, the different types of storage found in computer systems.

Background reading:  Blue book Chapter 3.  Pages 45 to 91

Types of Computer System
  • Supercomputers
  • Mainframes
  • Desktop Computers
  • Mobile Computers
  • Embedded Systems

Analogue and Digital data

Input Devices - what they are and how they work
  • 2D and 3D scanners - 2D HowStuffWorks - 3D Geoform
  • Barcode readers - Link
  • Digital Cameras - HowStuffWorks
  • Keyboards and mice - Keyboard - Mouse
  • Touch Screens - HowStuffWorks
  • Microphones - Link
Sensors and data capture - Link to BBC Bitesize

Output Devices - what they are and how they work
  • Inkjet printer
  • Laser printer
  • 3D printer
  • 2D and 3D cutters
  • Loudspeakers and headphones
  • Actuators
  • Display screens

Storage devices, Memory and Storage media
  • Primary storage (RAM and ROM)
  • Secondary storage (Hard disk and Solid state drives)
  • Removable storage (CD, DVD and USB drives)
  • Calculating the storage requirement of a file
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