Aqa ict info 1

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  • Created by: barbara
  • Created on: 11-05-11 21:34

Health & Safety

A number of health problems have been associated with the use of computers, especially if they are used a great deal. Some of the worries have since been disproved, while others can be managed. The following medical problems have been linked to using computers.

  • RSI - Repetitive Strain Injury
  • Eye Strain
  • ELF radiation
  • Back Problems
  • Stress


Repetitive Strain Injury is a disorder caused by repeating the same actions over and over again. This is often caused by typing. It leads to tight muscles in the forearms and can even lead to pain in the nerves of the fingers making it difficult to use them.

There are a number of things which can be done to reduce the risk of RSI. Correct posture and supporting the arms using a wrist mat when resting the arms will help reduce RSI. Touching lightly on the keys instead of punching them. Changing task every so often also helps as you probably will not be using the same movements. Keep the mouse close to the keyboard where it is handy. Better still learn the keyboard short cuts and use them instead. Using macros to replay multiple keystrokes is also a benefit. Voice recognition software may also be used to reduce typing and so reduce RSI.

Eye Strain

Although there is no evidence to suggest the using a VDU (visual display unit - monitor) damages the eyes, but sitting in front of a computer screen for long periods of time can lead to tired eyes. Making sure…


Mariam Mulla

hi, your revision notes are very quick and straight to the point but i just wanted to ask that is this topic in the specification for AQA in the May exams, as i am going to be sitting an exam then and need to find as much information as possible.


Ikram Patel

Hi. Bye.

Ikram Patel

Sorry I forgot to leave my comment.

Ikram Patel

Oops, Rubbish revision guide

Ikram Patel


komal maqsood

Ikram Patel wrote:


lol dont do the IT exam coz yu know YOLO 

Hannah Sabir


Mr A Gibson

Read, print, read, "Test yourself" - definitions and explanations learnt! This would be good to do as an intro to the topic or as revision. Create a mind map from it... a good all round resource.



Nigel Thornberry


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