Understand the concept of input, process and output
Success Criteria
I am able to correctly identify and describe certain input, process and output devices
I can explain the IPO cycle
IPO cycle
Computers require something to happen to allow them to process. They aren’t smart like humans and await an input before they do anything.
What they give us back is called the output.
What they do to give us the output is process the input – hence Input Process Output or IPO.
IPO cycle
The cycle is often represented in a block diagram.
Notice the arrow at the bottom going from output back to input. This is because often the output of one process is actually the input to another.
Inputs
There are many methods of input to a computer system. We call devices that provide an input, input devices.
Anything that provides the computer with data is an input device.
Processes
When input data needs to be processed, it is processed in the processor.
The processor, also called a Central Processing Unit (CPU), is often considered the brain of the computer because it does all the processing of the instructions.
Output devices
An output device gives the user back some data. The data will have been processed. Data could be:
What is displayed on the monitor
A sound from the computer
A vibration on a controller
A page printed using a printer
Which of the following are input devices?
Complete all Activities up to the Components of a computer system page.
Continue with your posters when you are finished