ICT revision DATA

Question 1

what is data and give an example of it ?

Answer 1

raw facts e.g 72,26,27

Question 2

what is information and give an example ?

Answer 2

has a kind of meaning e.g 23/11/99, the game finished 3-1

Question 3

what is knowledge and give an example?

Answer 3

information wit rules applied e.g my date of birth is 26/11/99, the game was 33 points to the red team and 12 tot he blue team.

Question 4

what dose G.I.G.O stand for?

Answer 4

Garbage in garbage out

Question 5

what is the meaning of G.I.G.O (garbage in garbage out)

Answer 5

when you put inaccurate data into a computer or database otherwise you will get inaccurate date out

Question 6

what is validation?

Answer 6

rules added to stop mistakes

Question 7

give some examples of validations that are put into a computer or database?

Answer 7

presence check, type check,range check,length check,format check(structure)

Question 8

what is verification?

Answer 8

is when you check the info entered is correct

Question 9

give 2 examples of verification?

Answer 9

double keying and reading through the data entered

Question 10

give 2 advantages of storing data on a computer ?

Answer 10

access anywhere,add security, less office space, esit and share easily

Question 11

give 2 disadvantages of sorting data on a computer?

Answer 11

training needed,virus/hacking,if it breaks down or software goes down