You probably interact with 50+ embedded systems every day without realizing it! Your phone has one (plus it's also a general-purpose computer), your car has dozens, your washing machine, microwave, TV remote, digital watch, smart thermostat, fitness tracker - all contain embedded systems.
Why are they so popular? Because they're cheaper, smaller, use less power, and more reliable than using a full computer for every task. Imagine if your microwave needed a full Windows PC inside it - it would cost £500, take 2 minutes to boot up, and need antivirus software!
Market size: There are about 2 billion general-purpose computers in the world (laptops, desktops, tablets), but over 100 billion embedded systems! They outnumber general-purpose computers 50 to 1.
This deep dive covers Deep Dive: Why Embedded Systems Are Everywhere within Embedded Systems for GCSE Computer Science. Revise Embedded Systems in 3.4 Computer Systems for GCSE Computer Science with 15 exam-style questions and 12 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 2 of 8 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Practice questions for Embedded Systems
Which of the following best describes an embedded system?
Explain the difference between an embedded system and a general-purpose computer. (3 marks)