Teach-ICT OCR GCSE Computing - handling data

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Unit A451 Topics

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HANDLING DATA

Handling Data Home

THEORY

Introduction

1. Introduction

variable

constant

data type

integer

real data

boolean data

text string

8. Text / String

character data type

one dimensional array

10. One dimensional arrays

1. Introduction

Specification point:

Handling data in algorithms

i) Define the terms variable and constant as used in an imperative language

ii) Use variables and constants

iii) Describe the data types integer, real, boolean, character and string

iv) Select an justify appropriate data types for a given program

v) Perform common operations on numeric and Boolean data

vi) Use one dimensional arrays

This section is all about handling data within an algorithm or program. Data come in various forms and so they need to be handled differently. This mini-web covers the data types you need to learn.