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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.