Summary 📝

An embedded system is a small computer built into a larger machine to do one specific job.

It is not a general‑purpose device like a PC, but is designed for one dedicated function.

Examples include traffic lights, washing machines, coffee machines, thermostats, and sat-nav systems.

Compared with general computers, embedded systems often have:

• smaller size.

• lower power use.

• lower cost.

• less processing power and memory.

• Advantages include efficiency, reliability and lower chance of errors.

• They perform their task quickly within their device.
  
  

Students should use relevant examples like thermostats or traffic lights in exam answers.