Flashcards
Chapter 1 Data, Info, Know, Processing
Cards in this deck (21)
- 1What is data? Give an example (2 marks)data is the raw facts and figures before they have been processed.
FGT5467 - 2How do you get information (formula)information =
data + structure + context +meaning - 3Name 5 ways of representing datatext
graphics
sound
moving images
LED - 4what could the information and knowledge be from this data 56, 58, 59info: Scores for the 3 snooker players
knowledge: the third player scored the highest break - 5what is Boolean data?data that contains 2 meanings
i.e. yes/no
hot/cold - 6what is real data?real data contains numbers with decimal places
45.25
123.56 - 7what is an integer?a whole number with no decimal places
15 - 8what is text/string data?data that is alphanumeric
10 Downing Street
TQ123JG - 9What is date/time data?data that contains a date or time!!!
- 10what is direct data?data that has been collected by you for a specific purpose
- 11what is indirect data?data that is used for a different purpose than what it was collected for
- 12what 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 - 13what does GIGO mean?garbage in garbage out
- 14why is it important to have accurate data?if it's not accurate the data can't be relied upon
- 15give two examples of encoding dataMon, Tues, Wed
Jan, Feb, Mar - 16why might encoding data be useless?people might not know the code
bl=black
tr= trousers - 17list 3 validation methodsrange
type
presence
length
lookup
picture
check digit - 18what are the 2 methods of verificationmanual verification
double entry - 19what is the difference between back up and archivingbacking 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.
- 20identify 4 costs in producing informationhardware
software
consumables
personnel - 21How are ICT systems broken down (4 steps and feedback)input
processing
storage
output
Information
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- Flashcards on Chapter 1 Data, Info, Know, Processing, created by mwag on 19/04/2013.
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- mwag
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