Questions on speaker to computer compatibility


Jul 23, 2012
(sorry if this sounds a bit amatuer, I don't have much experience in speakers) I have a pair of speakers that have the + and - connectors, rather than a USB or headphone jack. I'm looking to connect these to a computer, though the computer only has headphone jacks and USB ports. I assume I'll have to buy a new part. I know of a part that Radioshack sells that's just a headphone prong (?) with connectors, but would this work? It seems like the speakers would need more power than that. I don't mind doing some work and buying some parts, as long as it works. Thanks for any help!
The speakers I have are labeled as "sh93sa-s" for the model number. I don't know the name, if there is one. I got them used