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Computer Components
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* CPU (Central Processing Unit)
Takes data and instructions and operates on the data according to the instructions. Outputs the resulting data.
* Main Memory (RAM - Random Access Memory)
Stores the _working_ data and instructions.
* Mass Storage (HDD - Hard Disk Drive)
Non-volatile (is not erased when power is cut) storage of data and instructions. Access speed is much, much slower than main memory. Cost per byte is very low.
* Motherboard
The platform on which the rest of the components are either mounted to, or plugged into.
- Buses (or bus lines) that connect components to the CPU
- Chipset that controls I/O (e.g. Intel Z170)
- Expansion slots that allow for add-on cards (e.g. PCI Express)
- I/O ports (e.g. USB, PS/2, eSATA, sound, Ethernet, etc).
* Graphics Card (GPU - Graphics Processing Unit)
Specialised add-on card that renders 2D and 3D graphics. Output ports include VGA, DisplayPort, DVI, HDMI.
* PSU (Power Supply Unit) and housing (computer case)
* Input devices
Mouse, keyboard, trackpad, microphone, webcam, optical drive, etc.
* Output devices
Screen (display, monitor, VDU), speakers, headphones, printer, etc.
