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A2 ICT Topics

Input, Process, Output

Input, Process, Output Home

What its about

Theory

Introduction

1. Introduction

diagram

input

Processing

output

storage

feedback

example

8. Example

Let's look at each of these stages in a real-life system such as a school registration system.

The teacher takes a register each morning to see who is in the classroom (INPUT)

The data is loaded into the school database and PROCESSED to create an attendance record for each pupil.

The data is STORED for use at a later date for student reports

A printed list of all students who are absent is printed out (OUTPUT)

A secretary might telephone parents to find out why students are not in school. This data is entered into the system to update the records (FEEDBACK).