Data
Computers use binary code to store data.

Data

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What is Data? Characters and symbols might be data. Computers are designed to process data so it is important to understand what 'data' is and how it is different to 'information'.

See how much you know in the following quiz about data.

1.
Data is stored by computers in locations called .......
bikes
binaries
bytes
byttes
Bite or bites are alternative spellings
2.
A storage location contains the digits - 31122012.
This might be a piece of data
This is a date
This is certainly a piece of information
None of these
Looks like a date but really could be almost anything
3.
Data entered should be 'validated'. This means .......
it should be checked to make sure it contains no errors
it should be checked to make sure it is correct
it should be checked to make sure it is sensible
it should be entered in small batches
Validation is checking for sensible, reasonable data
4.
In most computers how many 'bits' make up a 'byte'?
8
9
32
36
The 'expected' answer - not the only correct answer!
5.
Data enters a computer .......
before processing but after the entry stage
during the entry stage
during the input stage
during the processing stage
Remember the order - input, processing then output
6.
Which is not a means of entering data into a computer?
Bar-code reader
Keyboard
Monitor
Scanner
7.
Which is not a measure of storage size?
Megabyte
Gigabyte
Terabyte
Kilabyte
8.
Computers use binary code to store data because .......
binary code is more reliable
binary code is much faster
binary code takes up less space
electronic circuits can only be 'on' or 'off'
A circuit which is 'on' represents '1', 'off' represents '0'
9.
Data entered should be 'verified'. This means .......
it should be checked for viruses
it should be checked to make sure it is completely accurate
it should be checked to make sure it is entered correctly
it should be checked to make sure it is reasonable
Entering a password twice is a common example
10.
Data is .......
an item of computer software
letters, numbers or characters with meaning
letters, numbers or characters with no meaning
stored numbers
Data turns into information when it is analyzed
Author:  Duncan Daish

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