1. INTRODUCTION TO COMPUTERS
LESSON 1

2. IT TERMS & DEFINITIONS
INFORMATION TECHNOLOGY- the use of technology (hardware & software) to perform data processing tasks (input data, store, protect, process, transmit, output, and retrieve information)from anywhere, anytime.
COMPUTER-An electronic device used to input, output, process and store data.
HARDWARE- All the physical components of a computer system
SOFTWARE- the programs (written instructions) that tell the computer what to do (perform tasks)

3. IT TERMS & DEFINITIONS
GIGO- Garbage In Garbage Out (is a term used to state whatever is put into a computer, that’s exactly what will be processed and output.
PERIPHERAL- All the external hardware components that are connected and controlled by the CPU (Central Processing Unit).
DATA- All raw facts and figures that are entered into the computer to be processed

4. IT TERMS & DEFINITIONS
INFORMATION- processed data that is in a useful form
INPUT DEVICE- a device that is used to enter data into the computer.
OUTPUT DEVICE- a device that is used to display/output information from the computer.
STORAGE DEVICE- is a device that is used to save/store data.

5. This is known as the Data Processing Cycle
What do we know so far?
A computer is made up of hardware and software.
Hardware & Software is needed to process data
There are THREE main stages involved in processing data to get information. They are:
INPUT PROCESS OUTPUT
This is known as the Data Processing Cycle

6. The Four Main Function of a Computer System
The computer uses Input devices to enter (input) the data in the CPU
The Central Processing Unit (CPU) processes the data
The Output device displays/outputs the information from the CPU
The information can also be stored on a storage medium

7. Home-Work
Using the four steps listed above draw a simple diagram showing the flow of data.
* Review Work for next day