IBM old computer audio line interface is round the mouth, how should I do?

Users questions:Units have a old IBM computer, audio is a combination of 15-inch display is BOSS, because the main chassis is no need to give it an old monitor for another box, other are good, that audio interface can be actually is round the mouth, how can we plug in the onboard sound card insertedPort on the ah? Is there any switch port? Demand! ! !
Experts answer: on the market have such a switch connector, and connected to like, the other can also buy a connector to replace the original connector.
  • This information provided by the users.Thanks!