Question

What is an information systems and elaborate on funtions of information systems

Answer 1

Information System : It is basically a organisational system to collect data , store data , process data for the purpose of providing information.

There are five functions of Information system :

1. Input : It basically refers to entering data into the system , it can be done in many ways that is entering manually through typing etc.

2. Processing : It is basically where the data is processed so as to produce some meaningful results , it may involve searching , calculations , sorting etc.

3. Output : It is where the processed data is presented to the user in the preferred format , this can be graphical output such as charts , graphs etc or textual output.

4. Storage : The processed information has to be stored for using it in the future , so we need to maintain backup regularly and also should be fault tolerance ( i.e. system should run even in case of failure)

5. Feedback : It is where output from our system is feedback in to the system so as to effect our input. It is very important function and also feedback should have some sort of effect on the future inputs.