Module One

DATA REPRESENTATION

Introduction

This module should be read in conjunction with the Programme of Study.

The Programme of Study lists the topics that are in the module and gives you the relevant page references for your textbook. This module aims to give you more direction as you work through the various topics. It will aim to highlight the most important items in the topic, as well as areas that need particular care. It will also point you towards the resources you should be using.

Remember to double-check the syllabus to make sure you cover all the items that you need to.

Module Overview

You started looking at data representation in the AS course. What you may not have realised is that well-represented data can make problem solving far more effective. You will learn some advanced methods of representing data such as the use of floating-point real numbers, as well as more complex methods of forming data into a structure and storing this within a system.

Topics

Topic One (1.1): User-defined Data Types

Topic Two (1.2): File Organisation and Access

Topic Three (1.3): Floating-point Numbers, Representation and Manipulation