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Creado por Anisha Rai
hace más de 8 años
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Pregunta | Respuesta |
What is a computer system? | Something which can rerceive, store, process and output data |
What do computer systems consist of? | Input devices Output devices Internal memory Processing devices Storage devices Software which supplies instructions to the processing devices |
What is reliability? | The probability that a computer will produce the correct output |
What would happen if a life critical computer system failed? | It could result in death or serious damage |
How could you improve a computer's reliability? | Clear design - satisfies user requirements Designed with safety & failure in mind Testing Developed according to defined standards Testing throughout development Fail safe mechanisms Maintenance should be carried out after the system goes live |
What are standards? | Help make sure that different computer systems can talk to each other Systems are more likely to be successful and satisfy users if they are developed according to defined standards |
What are proprietary standards? | Standards that are owned by a company that then charge others to use it e.g. Windows |
What are industry standards? | Standards that are agreed across the computing industry e.g. USB |
Wht are de facto standards? | Develop through common usage until they become the accepted way of making or doing things eg PDF, HTML |
What are open standards? | Standards that are publicly available Developed and modified by users Regular updates for no or minimal cost High quality e.g. Linux, Python |
Give examples of software standards | ASCII - allows computers to interpret binary codes as the same character HTML - allows different computers to view the same web pages TCP/IP - set of standards to allow all computers to transmit data across the internet |
What is ethical behaviour? | Behaving in a morally correct way |
What is a code of conduct? | Lists rules that should be followed by their members in order to behave ethically |
What is e-waste? | Any waste created by electrical or electronic devices that have been thrown away Often dumped in landfill sites Toxic substances can leak into the soil and water supply |
What is WEEE? | Waste Electrical and Electronic Equipment Directive Ensures equipment is recycled and not dumped |
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