Lesson 5: Basic Parts of a Computer

Day 1: The Systems Unit

Systems Unit

1. Picture A above shows a desktop computer system.
2. In Picture B, a part of the computer, the Systems Unit is shown.
3. The Systems Unit contains the central processing components of the computer.
4. Different computers also have different Systems Units.


The Systems Unit is the central processing part of the computer. Systems Units of different computers will appear differently, but they all have the same function. They house the parts that do the processing and storage of information.