[turab110]

Information system is system or procedures used to capture, produce, communicate and transmit information.

But I cannot make a concept of it, the only thing I know is its definition. Please can u help me by giving practical example of it so that I can have a clear concept about this topic.

[HoLoCroN]

a database is a very simple information system. Lets say you go to an ATM and withdraw $20, that transaction is recorded (Capture) and verified against your bank account to ensure the funds are available (Communicate). Your bank has an automated system that approves ATM request and sends back a "Green Light" to the ATM (Xmit Info) to give you the money.

Very simple example of IS.