1. The System Unit
By: Cole and Mariah

2. What is the system unit?
The system unit (also referred to as a tower or chassis) is the main part of a desktop computer.
The system unit includes the motherboard, CPU, RAM as well as other components
The term System Unit is often used to recognize a difference between the computer and other devices, such as the monitor, keyboard, and mouse.
Motherboard: The core of the computer everything is connected to
CPU (Central Processing Unit): The brain of the pc
RAM (Random Access Memory): Holds all of the data the processor is using at a given time

3. Why is the system unit important?
It is what you use to operate all system software
It is what makes up your computer
It allows access to anything on the computer
You can’t type without a keyboard and can’t do anything without a mouse controller

4. Different types of System Software
Operating system: Harnesses communication between hardware, system programs, and other applications.
Device driver: Enables device communication with the OS and other programs
Firmware: Enables device control and identification
Translator: Translates high-level languages to low-level machine codes
Utility: Ensures optimum functionality of devices and applications

5. Different types of System Software 2
Middleware- provides services to software
Shells- user interface that helps get access to an operating system’s services
Window systems-software the manages different parts of display seperately

6. What’s inside the system unit?
A microprocessor
Central Processing Unit (CPU)
^^^it carries out the instructions the user sends it
A fan to cool all the components so it doesn’t over-heat and cause problems or potential disaster (fire)
Optical drive
Hard disk drive
Connectors and expansion slots

7. What you need to know
Memory cards save all the data from your computer (storage, search history)
The power supply unit has two uses
Convert electrical power available at a wall outlet so the circuits can run
Delivers low voltages to each device due to their requirements

8. What is the function of a system unit?
It protects all sensitive and easily damaged parts of a computer
The case is large enough to store extra things such as:
Second hard drive
Larger memory card
Higher quality video card
It is however harder to open up the system unit of a laptop, because it is designed to keep the software safer

9. Any Questions???

10. THE END

11. Cites
ms/The_System_Unit
function-components-definition.html