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This page is part of the old A451 specification - current syllabus here

1. Introduction

Specification point:

i) Explain the need for internal and removable storage

ii) Describe common storage technologies such as optical, magnetic and solid state drives

iii) Select suitable storage devices and storage media for a given application and justify their choice using characteristics such as capacity, speed, portability, durability and reliability.



Any device which is used to store data is known as a 'storage device'. There are a number of different storage devices, each with their own purpose and use. We will examine each of them in turn over the next few pages.