5140042
Description
Flashcards by Anisha Rai, updated more than 1 year ago
|
Created by Anisha Rai
over 8 years ago
|
|
| Question | Answer |
| 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 |
Want to create your own Flashcards for free with GoConqr? Learn more.