Digital Technology

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  • Created by: Matthew__
  • Created on: 14-12-17 11:25
What does data consist of?
Data consists of raw facts and figures
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Types of data
letters numbers images symbols and sound
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what is information
Data that has been processed in such a way as to be meaningful to the person who receives it
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what does information equal
INFORMATION=DATA+CONTEXT+MEANING
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what way does a computer store data
in digital format using a system known as binary
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list different data types
Numeric,Date/Time,Character/String
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What is a pixel
this is the smallest unit of a digital image which can be displayed and edited on a computer screen
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Explain a bitmap graphic
It is composed of many tiny parts, called pixels, which are often many different colours. it is possible to edit each individual pixel.
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State two advantages of Streaming
The video is unlikely to be replicated as the user does not save a full copy. / The user does not have to wait for the entire file to download to their computer.
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What is the sample rate
It is the quantity of samples taken per second to represent the sounds digitally. it is measured in Hertz (Hz).
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List the ways in which you store data
Bit,Byte,Nibble / bytes,megabytes,kilobytes,gigabytes,terabytes
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Other cards in this set

Card 2

Front

Types of data

Back

letters numbers images symbols and sound

Card 3

Front

what is information

Back

Preview of the front of card 3

Card 4

Front

what does information equal

Back

Preview of the front of card 4

Card 5

Front

what way does a computer store data

Back

Preview of the front of card 5
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