| | Information Systems : Introduction | 
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Information is stored and used by organisations such as the government, companies and clubs for a variety of purposes. Some examples of people who store and use information are :
| Organisation | Information Stored | What The Information Is Used For |
| School | Name and addresses of pupils. Pupils’ marks. | Produce reports, set classes. |
| Doctors Surgery | Names and addresses of patients. Previous illnesses. Visits to hospital. Allergies. | Help doctor diagnose illnesses and prescribe treatment. |
When a system has been set up to store and carry out tasks using information we call this an information system. Today most information systems use computers, but this has not always been the case and some information systems are still operated manually.
When we talk about computerised information systems we can use a better definition of the term information system :
An information system consists of everything needed to perform a particular task using information. This will include hardware, software and the people who use the system.
GCSE ICT Companion 04 - (C) P Meakin 2004