just speakers? you will need a reciever with an input. If the speakers have an 1/8th inch plug on them you can plug that right into the back of your computer but I doubt they do unless they are pc speakers.
the back of the stero has a couple of white and red input and output things i can plug things into and on the back of my computer i have a red and white in put
Yea you need a cable that goes to thoughs two ports on your sterio, and then the connection to go to your speaker input on your pc, i have it done at my house, its simple