Learn: Embedded Systems

Welcome!Building on what you've already learned about CPUs and their components, this lesson will focus on embedded systems. These are special types of computers used inside devices. Let's explore how they work and why they're important!

What are Embedded Systems?An embedded system is a computer that is built into a device to perform specific tasks. Unlike general-purpose computers, embedded systems are designed to carry out a particular function efficiently. They are found in everyday devices like microwaves, washing machines, and car engine management systems.

Characteristics of Embedded SystemsEmbedded systems often have limited hardware, such as a simple CPU, small memory, and no external storage. They are optimised for specific tasks, making them reliable and efficient. For example, a temperature sensor in a fridge only needs to measure and regulate temperature.

Examples of Embedded SystemsEmbedded systems are everywhere! Common examples include:Microwave ovens: Control heating and timing.Washing machines: Manage wash cycles and water temperature.Traffic lights: Control light timings based on programmed intervals.

Advantages of Embedded SystemsEmbedded systems are compact, efficient, and cost-effective. Their small size and specialised design mean they use less power and are easy to fit into devices. For example, in a car, the embedded system can monitor engine performance, saving fuel and improving reliability.

Review Time!Great work! You've learned about embedded systems, their characteristics, advantages, and examples. Now let's test your understanding with a few questions.