Computing - Fundamentals of Computing Systems

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System
Inputs -> Processes -> Outputs. Small, versatile, cheap, programmable
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Embedded System
Dedicated computer system that is fixed to one purpose
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IT Failure Reasons
Time scale too short. Not specified properly. Too many interested parties.
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Proprietary Standards
Owned by the company. Look and feel familiar. Work in a predictable way. Be maintained by one company which means free updates.
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Industry Standards
Been agreed across a company's industry. Like USB for example.
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De Facto Standards
Developed through common use. PDF started as proprietary and then moved to this. HTML became de jure from de facto.
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Open Standards
Publicly available. Source code is in the public domain. Software can be developed by users. Of a high quality and regular free updates. No one to blame when things go wrong.
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Ethical Considerations
Not undertaking work that is beyond capabilities. Not taking bribes. Avoid injuring others.
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Environmental Considerations - Energy
Energy is wasted in generation of heat. Air conditioning in data centres use a lot of energy. Supplies of energy are finite and expensive
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Environmental Considerations - Disposal
E-waste is old computer equipment which is harmful because of the toxins residing in it. Safe disposal of e-waste is an ongoing argument.
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Legal Considerations (LAWS)
Data Protection Act 1998 - protect people's privacy. Computer Misuse Act 1990 - illegal to gain unauthorised access or change information on a computer system. Not all countries agree and the international aspect of Internet causes legal confusions.
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Other cards in this set

Card 2

Front

Dedicated computer system that is fixed to one purpose

Back

Embedded System

Card 3

Front

Time scale too short. Not specified properly. Too many interested parties.

Back

Preview of the back of card 3

Card 4

Front

Owned by the company. Look and feel familiar. Work in a predictable way. Be maintained by one company which means free updates.

Back

Preview of the back of card 4

Card 5

Front

Been agreed across a company's industry. Like USB for example.

Back

Preview of the back of card 5
View more cards

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