Hello everybody.
Am new here and i need help in keeping bitcoin
You're asking about 'keeping' your Bitcoin. So I'm assuming you have already purchased your Bitcoins.
In this case, how did you acquire them? If you used some exchange like Coinbase / BitStamp etc., you should install a desktop wallet and transfer yuor coins to your computer rather than leaving them on exchange.
Since you are new and still learning, I would suggest you try Multibit or electrum. Both are easy to use wallet. Moreover they're 'lite' clients that do not need the whole block chain downloaded in order to function well.
If this was not the answer to your question, then please elaborate more about what you're asking.