50398
| Questão | Responda |
| What is data? Give an example (2 marks) | data is the raw facts and figures before they have been processed. FGT5467 |
| How do you get information (formula) | information = data + structure + context +meaning |
| Name 5 ways of representing data | text graphics sound moving images LED |
| what could the information and knowledge be from this data 56, 58, 59 | info: Scores for the 3 snooker players knowledge: the third player scored the highest break |
| what is Boolean data? | data that contains 2 meanings i.e. yes/no hot/cold |
| what is real data? | real data contains numbers with decimal places 45.25 123.56 |
| what is an integer? | a whole number with no decimal places 15 |
| what is text/string data? | data that is alphanumeric 10 Downing Street TQ123JG |
| What is date/time data? | data that contains a date or time!!! |
| what is direct data? | data that has been collected by you for a specific purpose |
| what is indirect data? | data that is used for a different purpose than what it was collected for |
| what is the difference between dynamic and static data? | dynamic data is like a website, the data can be changed. static data is like a CD-ROM, the data can't be edited |
| what does GIGO mean? | garbage in garbage out |
| why is it important to have accurate data? | if it's not accurate the data can't be relied upon |
| give two examples of encoding data | Mon, Tues, Wed Jan, Feb, Mar |
| why might encoding data be useless? | people might not know the code bl=black tr= trousers |
| list 3 validation methods | range type presence length lookup picture check digit |
| what are the 2 methods of verification | manual verification double entry |
| what is the difference between back up and archiving | backing up data means having a copy of the data and keeping it on the system. archiving means getting a copy of the data and removing it from the system. |
| identify 4 costs in producing information | hardware software consumables personnel |
| How are ICT systems broken down (4 steps and feedback) | input processing storage output |
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