Types of Computer (Cambridge (CIE) IGCSE ICT)

Revision Note

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Expertise

Computer Science Content Creator

A desktop computer is a computer designed to stay in one place, for example on a desk
A desktop computer traditionally consists of a separate:
- Monitor
- Computer
- Keyboard & mouse
Desktop computers are typically more powerful than mobile computers
Desktop computers are upgradable, the parts can be replaced/changed to increase performance

A mobile computer is a computer designed to be portable, for example a laptop
A mobile computer traditionally consists of built-in:
- Monitor
- Computer
- Keyboard & trackpad or touch screen keyboard & pointer
Mobile computers are typically less powerful than desktop computers due to:
- Power constraints due to size
- Focus on extending battery life
Mobile computers are not easily upgradable, components are integrated for size and efficiency
Mobile computers are battery powered

Laptop	Smartphone	Tablet/Phablet
Lightweight	Small physical size	Larger screen than smartphones
Low power consumption	Easy to carry around	Ideal for media consumption and web browsing
Take up less room (than desktop)	Long battery life	Limited expandability
Touchscreen interface	Slower data transfer rates	Uses Bluetooth, Wi-Fi, 4G, 5G

Office & Business	Remote access to office applications Email and communication on the go Mobile payment processing Calendar
Education	E-books and digital textbooks Educational apps and tools Note-taking and research
Gaming & entertainment	Mobile gaming apps Streaming movies and music Social media
Remotely controlled devices	Controlling smart home devices Remote access to surveillance systems Controlling drones and other devices
Other	Sat Nav Online banking Searching the Internet Taking photos Language translation

Advantages	Disadvantages
Easy to carry and use on the go (Portability)	Limited expandability (Difficult to upgrade hardware)
Access to internet and resources from anywhere (Flexibility)	Less powerful (Lower performance compared to desktop computers)
Can be used for various tasks and activities (Multi-functionality)	Shorter battery life (Needs frequent charging)

Circle two input devices that could be used in a smartphone.

HDD	magnetic stripe reader	microphone	mouse
remote control	speaker	touchpad	touch screen

[2]

Answer

Microphone [1]
Touch screen [1]

the (exam) results speak for themselves:

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