IPSO

Most computers have four types of hardware components: input, processor, storage (auxiliary storage) and output. Input and output (I/O) devices allow the computer to communicate with the user and the outside world. The CPU (central processing unit) executes programs ("software") which tell the computer what to do.

IPSO Cycle

The diagram given explains the operations in the computer. First the data enters the computer through the input device, and then processing occurs at the processing unit. The processing unit is the microprocessor chip. Processing unit comprises of the control unit and arithmetic and logical unit and main memory. There are storage devices (auxiliary storage) which store the processed data and data can be retrieved at anytime. The processed data is sent out to the output devices for the user.

Input ----- Processing ------ Storage ----- Output