It was thus said that the Great Randy McLaughlin once stated:
 I have never seen a modern PC without a serial port but if USB is absolutely
 required there are USB to serial adapters. 
  For now.
  I'm having difficulty finding a PS/2 to AT keyboard adapter [1].
  -spc (Still using 10Base-2 at the house ... )
[1]     I have a KVM [2] switch that only uses PS/2 style connectors.  I
        have an older PC that uses the AT (fat) style keyboard connector and
        it's a pain that I can't connect it up to the KVM.
        I tried finding the adapter at a local Rat Shack and no go.
[2]     Keyboard, Video, Mouse