Types of Computer (Cambridge (CIE) IGCSE ICT)
Revision Note
Written by: Robert Hampton
Reviewed by: James Woodhouse
Desktop Computer
What is a desktop computer?
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
Uses of desktop computers
Office & Business | Education | Gaming & entertainment |
|---|---|---|
Word processing | Online learning | Online gaming |
Financial modelling | Research (www) | Streaming music/film/TV |
Content creation | Social media | |
Data storage & backup | Multimedia presentations | Online browsing |
Video/image editing | Online collaboration | |
Project management | Online communication | |
Video conferencing |
Mobile Computer
What is a mobile computer?
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
Characteristics of mobile computers
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 |
Uses of mobile computers
Office & Business |
|
|---|---|
Education |
|
Gaming & entertainment |
|
Remotely controlled devices |
|
Other |
|
Advantages and disadvantages
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) |
Worked Example
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]
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