If you do not have an external amp to play your electric guitar through, this great tutorial can show you how to play your guitar through your computer.
we have seen so many different musical modification to Play Piano On Your Computer, rock on your Guitar Using Telsa Coils, and even a mini keg of Heineken as Guitar Amp, but this project is something I am certain many guitar players wished for many times.
Instead of buying the expensive USB ports to hook your guitar to your computer, there is a home made way for you to build the guitar input straight into your computer. It takes some ingenuity and may not be a quick fix, but the result will simply rock.
Via: Instructables