Introduction

This module will cover:

• The purpose and characteristics of embedded systems
• Examples of embedded systems

For this topic, the specification states that you should know the following:

• What embedded systems are
• Typical characteristics of embedded systems
• Familiarity with a range of different embedded systems

The Purpose and Characteristics of Embedded Systems

An embedded system is a computer system with a dedicated function that is usually part of a larger mechanical or electrical system.

They are usually based on microcontrollers or microprocessors, keeping the power consumption and cost per unit low.

There is no operating system installed on an embedded system. Instead, firmware is usually created and flashed to the microcontroller.

Examples of Embedded Systems

Some notable examples of embedded systems are:

• Washing Machines
• Traffic Lights
• Engine Management Systems
• Medical Instruments
• Factory Machines

These devices are not examples of embedded systems, and are considered as general purpose systems:

• Desktop Computers
• Laptops
• Smartphones
• Tablets

About the Author

Hi! I'm Oliver, a Computer Science student in the UK. I created CourseNotes as a way to share my learning and knowledge with the world, and help other students to do their best in their exams.

I am currently studying Computer Science at GCSE level with the OCR exam board. All notes on this site will be exam board specific, but a lot of the concepts are similar across other exam boards.

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