LESSON 1 INTRODUCTION TO COMPUTERS. IT TERMS & DEFINITIONS INFORMATION TECHNOLOGY- INFORMATION...
Preview:
Citation preview
- Slide 1
- LESSON 1 INTRODUCTION TO COMPUTERS
- Slide 2
- IT TERMS & DEFINITIONS INFORMATION TECHNOLOGY- 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 COMPUTER-An electronic device used to input, output,
process and store data. HARDWARE- HARDWARE- All the physical
components of a computer system SOFTWARE- SOFTWARE- the programs
(written instructions) that tell the computer what to do (perform
tasks)
- Slide 3
- IT TERMS & DEFINITIONS GIGO GIGO- Garbage In Garbage Out
(is a term used to state whatever is put into a computer, thats
exactly what will be processed and output. PERIPHERAL- PERIPHERAL-
All the external hardware components that are connected and
controlled by the CPU (Central Processing Unit). DATA DATA- All raw
facts and figures that are entered into the computer to be
processed
- Slide 4
- IT TERMS & DEFINITIONS INFORMATION INFORMATION- processed
data that is in a useful form INPUT DEVICE- INPUT DEVICE- a device
that is used to enter data into the computer. OUTPUT DEVICE- OUTPUT
DEVICE- a device that is used to display/output information from
the computer. STORAGE DEVICE- STORAGE DEVICE- is a device that is
used to save/store data.
- Slide 5
- What do we know so far? A computer is made up of hardware and
software. Hardware & Software is needed to process data THREE
There are THREE main stages involved in processing data to get
information. They are: INPUT PROCESS OUTPUT
- Slide 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
- Slide 7
- Home-Work Using the four steps listed above draw a simple
diagram showing the flow of data. * Review Work for next day