aspects of data

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Mr Caine

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Mr Caine

System – Input, Process, Output

Input Process OutputData Information

Lesson Objectives To know what is expected from you during the AS ICT

course.

To understand what topics are covered in AS ICT, how you will be assessed and when you will be assessed.

To be able to define ICT, a system and an ICT System.

What is Data? In pairs discuss what you think Data is?

Data can be defined as a set of recorded facts, numbers or events that have no meaning.

Data is meaningless until it is given relevance.

All data on a computer is represented by 0’s and 1’s.

Types of Data What are the different types of data?

Text

Numeric

Boolean/Logical

Images

Audio

Video

Encoding DataDecimal Binary Symbol Description

48 00110000 0 Zero

49 00110001 1 One

50 00110010 2 Two

51 00110011 3 Three

52 00110100 4 Four

53 00110101 5 Five

54 00110110 6 Six

55 00110111 7 Seven

56 00111000 8 Eight

57 00111001 9 Nine

IDEA Identify

Describe

Evaluate

Analyse