ICT Notes (WJEC)

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  • Created by: amy clark
  • Created on: 05-05-11 11:47

Computer Assisted Learning

  • Software that is run on computers to help people learn about a particular subject
  • Use text, graphics, videos, animation, sound, hyperlinks and self-assessment
  • Internet bases or made on multimedia programs (powerpoint)

Advantages

  • Can be updated easily + don't become outdated like textbooks
  • Textbooks can be lost, so after initial set-up CAL saves on cost
  • Can be accessed out of school
  • More interesting for students
  • No teacher is needed for the course to progress
  • Pupils can work at their own pace and repeat topics
  • Distance learning - if a pupil is ill/disabled/far away they can access information online

Disadvantages

  • Internet sites are not always factually accurate
  • Pupils can get distracted
  • Networks can go down
  • Teachers will be less aware of a struggling student
  • Not as much student/teacher interaction
  • Teachers have to get to grips with the software
  • Less personal so some students may struggle if they need specialised help

 

Expert Systems

  • Computer system simulating the knowledge and expertise of a human expert
  • There to help doctors, not replace them

Components

  • Knowledge base - large database of knowledge which can be interrogated
  • User interface
  • Inference Engine with which the machine can make deductions and diagnose patients

Advantages

  • Knowledge in the system can be far more than any one person could ever know
  • Should never make mistakes or get facts wrong
  • Won't retire or get ill
  • Less embarrassing for patients to talk to a computer

Disadvantages

  • No personal touch
  • Not cheap, need to be installed

Comments

mariah

thanks :)

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