External Sound Card Will An External Sound Card Work If The Internal Sound Card Does Not?

Will an external sound card work if the internal sound card does not? - external sound card

I bought an old IBM. The sound card (if present) does not work. If I buy an external sound card to work?

What should I buy? The work of the external sound card, if the prisoner does not?

I do not think I can install an internal sound card.
Thanks