Page 31 - ICT_for_JHS_1_Classical

Stages of Information Processing Cycle

From the above, you can see that the Information Processing Cycle has four (4)
stages. These are:
Input
Processing
Output
Storage

Information Processing Cycle

Input
Input is the first stage of the cycle. Input is any data or instruction you enter into
a computer. Data could be in the form of text, pictures, music, pictures, etc. this

stage can be broken down into three (3) stages:
1. Acquisition (Collection) of Data
2. Entry of Data
3. Validation of Data
After the data has been acquired, it is entered into the system upon which the

data is validated so that correct results are given at the end of the cycle. Input
devices are used in this stage.

Input Devices

Input device is a device by which data is fed into the computer. It is any
hardware device that sends data to a computer, allowing interaction and control
the computer.
Examples of input device are; Keyboard, Mouse, Microphone,
Camera / Webcam, Scanner, Light Pen, Touchscreen (Finger), Stylus,
Digitizer, Barcode Code Reader, Trackball, Biometrics (Finger