Flashcards
1-4 revice
Cards in this deck (10)
- 1Databases are used to store and organize large amounts of data on a computer. Databases are used in many aspects of everyday life.With databases, you can also sort data in either ascending order (A–Z, 0–10) or descending order (Z–A, 10–0).
- 2GIGO means Garbage In, Garbage out. if something wrong is inputted into a computer something wrong will be outputted.data is raw facts or figures. it has no meaning and can be set of random words or numbers
180
140
60
120 - 3Information is data that has been processed to give it meaning. In order, students finished the race in 60 seconds, 120s, 140s and 180s.Knowledge is information when a rule or set of rules has been applied to it.
The shortest time is the race winner.
The student with the time 60s is the winner of the race. - 4Validation checks are used to ensure that only sensible data is entered into a computer.There are four different checks
Range check
Format check
Presence check
Check digit - 5Range check is used to check that numbers are between a certain range.Format Check is used to make sure that the correct mix of letters and numbers is entered.
- 6Presence check is for checking for fields that are not emptyCheck digit works out if you entered an extra number to the end by doing a calculation on the longer set on numbers
- 7There are many interactive TV service below are some examples. Pay-to view Shopping Betting Dating VotingPay-to view is a fee so you get to access either specific TV channels or one-off purchases
- 8Shopping is making small purchases, or even order pizzas, using a TV.Betting is letting people bet on a wide variety of sporting event quick and simple
- 9Dating is allowing people to meet others through their TV.Voting in the future may be possible that the UK may allow people to vote for their MPs online
- 10Typical input devices for gaming are joysticks, steering wheels or games controllers.Typical output devices for gaming are speakers and television
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- Flashcards on 1-4 revice, created by shane mgbi on 02/05/2017.
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- shane mgbi
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