Data and Information Flashcards
Define Data
Data is raw, unorganised facts that need to be processed.
Define Information
Information is data that has been processed, structured, organised or presented in a given context.
e.g 10 –> [10 brothers]
[____] + [____] + [____] + [_____] = Information
Fill in the blanks:
Data + Context + Structure + Meaning = Information
Example:
Data = 251203
Context = NN/MM/YY - 25/12/03
Structure: A UK date
Meaning: Christmas day in 2003
What are the 7 data types?
- Text
- Alphanumerical
- Boolean (Yes/No)
- Number
[Integer/Real/Currency/Decimal/Percentage/Fraction] - Date/Time
- Object
- Limited choice
Data Type: TEXT
What is it?
Give an example.
How can the data type be used?
Text is any given character
e.g DBJF”>?:@f
It can be used to store names of items or people or could be used to store phone numbers.
Data Type: ALPHANUMERICAL
What is it?
Give an example.
How can the data type be used?
Alpanumerical is any combination of letters, spaces and numbers.
e.g postcodes GE 44 1OP
It cold be used to store post codes (as they contain numbers and letters)
Data Type: NUMBER [INTEGER]
What is it?
Give an example.
How can the data type be used?
An integer is a whole number.
e.g 2003
- Record the number of items in stock
- TV channel number
- What year it is
Data Type: NUMBER [REAL]
What is it?
Give an example.
How can the data type be used?
Real numbers are numbers with a decimal point.
e.g 12.50
It could be used to store an individuals height or weight.
Data Type: OBJECT
What is it?
Give an example.
How can the data type be used
Ojects can store additional components [usually found in spreadsheets]
e.g Graphs
To compare how many people are choosing to swim, versus who aren’t on a pie chart.
Data Type: LIMITED CHOICE
What is it?
Give an example.
How can the data type be used
Limited choice restricts the user to specific choices.
e.g Drop down lists/tick boxes/Check boxes/Radio buttons
A school may use limited choice in a questionnaire/survey to gather information on students, on how they feel at school.
What is meant by the term ‘Validity’?
Validity means how believable the data and information collected is.
e.g data found on government websites would almost certainly be valid, whereas data found on unreliable sources such as ‘The Mirror’ may not always be valid and trustworthy because it could be commonly associated as “fake news”.
