Unit 2 3.1,2,3,4,5,6 Notes

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3.1 Data versus information, i.e:

information is in context, data is not

data is information that has been coded and structured in some way, ready for processing, storage, transmission etc.

Data consists of raw figures which have not been processed e.g. 18,20,14,13,17,18,20

Information is data that has been processed and structured into meaningful content i.e it was sunny

Content e.g. the figures relate to a class test of results in computer science

Knowledge is the understanding of rules needed to interpret information e.g. A Marketing Manager could be information from a customer survey to decide weather or not continue selling a certain product

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Questions:

Banks keep records of customers and their bank accounts. Give one example for each of the following:

Data that are recording facts [1] - name e.g. Viggle

Data that are the results of transaction [1] - amount of money withdrawn from the bank e.g. £100

Every ICT task involves the input of data, which is then processed and information is output. Using an example of an ICT task with which you are familiar:

State what the task is [1] - To produce an invoice for ABC landscapes

Give one example of data that is input, stating how it is input [2] - Data input: number of hours worked AND How: using a keyborad

Describe one process needed to fulfill the task [2] - the hours worked can be multiplied by hours wage to work out labour

Give one example of information output, stating how it is output [2] - printed or emailed

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3.2 Categories of information used by individuals, i.e:

Communication (e.g. to send an email to a relate living oversea)

Education and training (e.g. by a student to check their current grades on hand written feedback sheet from their teacher)

Entertainment (e.g. to read a film review in a magazine)

Planning (e.g. to use a shared electronics diary to arrange meeting dates)

Financial (e.g. to use a bank statement to help plan saving for a holiday)

Research (e.g. to look up a recipe online)

Location dependent (e.g. to search for emergency dental care when on holiday)

Benefits and limitations

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