Unfortunately, in this Introductions forum you won't get an answer to your question because this forum is not for asking technical questions. Technical questions must be asked in the appropriate technical forum.
Unfortunately, posting your question in the appropriate technical forum will still get no answers! Your question is one which should be answered by yourself doing a google search. If you post it to a PF technical forum you can expect your question to be deleted.
Please read our guidelines for posting before you make any further posts. We don't do homework that members can research for themselves.