AS Chapter One Keywords

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Data
A collection of alphanumeric characters without meaning
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Alphanumeric Characters
Numbers, letters or symbols
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Information`
DATA + CONTEXT + STRUCTURE + MEANING
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Context
Taking the data and giving it an environment, where our prior knowledge and understanding can make sense of it
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Structure
The presentation of data, including any formatting
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Meaning
An understanding of what the data relates to
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Text
Alphanumeric characters put together to deliver a message
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Graphic
Picture, image or drawing
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Sound
A range of frequencies which can be used to transmit information
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Video
The technology of electronically capturing, recording, processing, storing, transmitting, and reconstructing a sequence of still images representing scenes in motion
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LED
A single point of light; LEDs can be grouped together to form multiple points
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Knowledge
Application of information (to a given context) resulting in understanding
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Application
Using information within a given context
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Data Type
Defines the type of information that can be stored. For example, dates, numbers or characters
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Static Data
Data that remains the same after a refresh
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Dynamic Data
Data that can (but doesn't have to) change after a refresh
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Direct
No one or thing comes between the source of the data and yourself when collecting the data
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Indirect
Something comes between yourself and the data collection - it might be bought, another person collects it or it is collected for a different purpose
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Quality of Information
How useful that information is in the target area for which is has been produced - how easy it is to turn it into the required knowledge
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Encoding
Transforming the data from one format into another. Can include shortening, symbol replacement or abbreviations
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Range
Difference between upper and lower value
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Type
Data must match
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Presence
Data must be entered
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Length
Maximum and minimum characters entered
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Picture
Follows predefined rules for each data type at each position
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Check Digit
Mathematically calculated check
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Computer Verification
Data is entered twice and the computer performs the task of matching the two sets of data looking for mistakes
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Manual Verification
The individual is responsible for making sure the object and source are the same - either the same person re-reading or another person reading both copies
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External Media
Media that can be removed. For example, USB memory stick, external hard disk drive and internet back-up
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Hardware
A physical device, something that can be touched and seen
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Software
Programs and code - can't be physically seen or touched; only the results of running the software can be seen
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Consumables
Paper, ink, toner, electricity
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Personnel
Hiring, training and time
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Input
Getting data external to the system into the system
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Processing
Performing an action on the data. For example, edit, sort, save, etc.
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Output
Getting data that is within the system out of the system
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Storage
Saving data for later use
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Feedback
Taking the output and making it into the next cycle of input
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Other cards in this set

Card 2

Front

Numbers, letters or symbols

Back

Alphanumeric Characters

Card 3

Front

DATA + CONTEXT + STRUCTURE + MEANING

Back

Preview of the back of card 3

Card 4

Front

Taking the data and giving it an environment, where our prior knowledge and understanding can make sense of it

Back

Preview of the back of card 4

Card 5

Front

The presentation of data, including any formatting

Back

Preview of the back of card 5
View more cards

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