What is an embedded system?
A computer system designed to perform one dedicated function.
Where is an embedded system usually found?
Built into a larger device.
Give examples of devices that use embedded systems.
Cars, washing machines, security systems, lighting systems, vending machines.
How is an embedded system different from a general-purpose computer?
An embedded system performs one specific task, while a general-purpose computer performs many tasks.
What is a microcontroller?
A single chip containing CPU, RAM, ROM, and peripherals.
What is a microprocessor?
A single chip that contains only the CPU.
Why is a microcontroller suitable for embedded systems?
Because all required components are on one chip, reducing size and cost.
What are the two main ways input is provided to an embedded system?
Manually by the user or automatically via sensors.
What type of data can sensors provide?
Analogue or digital data.
What happens after an embedded system processes input?
It sends output signals to control components.
Why are embedded systems optimised by engineers?
To reduce size, cost, and power consumption.
What is the difference between programmable and non-programmable embedded systems?
Programmable systems can be updated; non-programmable systems must be replaced
Give two ways embedded systems can be updated.
Via computer connection or automatic updates using Wi-Fi/satellite/mobile networks
How can embedded systems be controlled remotely?
Using internet-enabled devices like smartphones or computers.
Why are PCs and laptops not embedded systems?
Because they are multi-functional and not dedicated to one task.
State three benefits of embedded systems.
Small size, low cost, low power consumption
State three drawbacks of embedded systems.
Difficult upgrades, specialist troubleshooting, vulnerable to cyber attacks.
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5. The internet and its uses36
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3.1 Computer Structure49
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3.2 Input and Output devices16
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3.3 Data storage38
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3.4 Network hardware24
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4.1 Types of software and interrupts27
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4.2 Types of programming language, translators and integrated development environments (IDEs)25
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1.2.1 Representation of Text & Use of Character Sets9
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1.2.2 REPRESENTATION OF SOUND8
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1.2.3 Representation of Images9
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1.3.1 Measurement of Data Storage8
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1.3.3 DATA COMPRESSION13
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2.1 Types and Methods of Data transmission20
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2.2. Error detection methods7
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2.3 Encryption7
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ch3 SCANNERS(2D&3D) + PRINTERS(INKJET + LASER+3D)18
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Actuators, projectors, and screens12
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5.118
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5.25
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3.1.3 CACHE, CLOCK, & CORE [NEW]28
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3.1.4 Instruction Set13
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3.1.5 Embedded Systems17
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3.1.5+ Applications of embedded systems[cars, set-top box, security systems, lighting systems, vending and washing machines.]16
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5.3 Cyber Security (ATTACKS)54
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5.3+ Cyber Security(SOLUTIONS)56
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1.1.3 Uses of Hexadecimal system11
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6.1 Automated systems24
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6.2 ROBOTICS13
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6.3 AI11
