411 REFERENCE · Wikibooks
IGCSE Information and Communication Technology/1. Types and components of computer systems
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
The written theory exam is 2 hours long and covers a wide range of topics. Questions range from simple true/false ones, to ones requiring long, extended answers.
Like any other IGCSE subject, ICT theory requires you to understand and learn the facts.
There is no shortcut... you will have to REVISE!
But, hopefully, these notes will help you to gain the understanding required.
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If you're trying to find out about a particular topic, rather than a syllabus section, try looking here:
Topic List
Before you start reading the notes for each of the syllabus sections, read this introductory section:
Some General Concepts
The notes are divided into the following sections to match the theory section of the syllabus:
Types and Components of Computer Systems
Input and Output Devices
Storage Devices and Media
Computer Networks
Data Type and Organisation
The Effects of Using IT
ICT Use in Everyday Life,
ICT Use in the Workplace
Systems Analysis and Design