Fresher - Need Help - Whate is SAP

Hi,

Am fresher and I want to learn SAP.

Could any one of you please answer to my doubts.

What is SAP. Is it business related.

How many modules does it cover.

What is its beauty. i.e. why people are moving towards it.

what are the opportunities.

Early reply is appreciated.

Thanks in advance.

Sree Madhuri