Computer Systems and Their Reliability
- Created by: AnonymousCharacter
- Created on: 21-05-15 11:33
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- Computer systems and their reliability
- A System can
- recieve data
- store data
- process data
- output data
- A System consists of
- input devices
- output devices
- internal memory
- processing devices
- storage devices
- software which supplies instructions to the processing devices.
- Reliabilty
- The probability that a program will produce the correct output
- Failure of some sytems will result in death or serious damage
- Called safety critical or life critical
- Improve reliability
- clear design
- designed with safety and possible failure in mind
- make testing easy include test plans
- develeoped according to defined standards
- testing carried out throughout development
- maintenamce after system has gone live
- failsafe mechanisms built in
- Free of errors
- Hardware
- very important
- Must also be reliable
- A System can
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