System/370 capability in a desktop computer

A desktop computer with System/370 capability was produced by enhancing the IBM Personal Computer XT with additional hardware and developing software that provides a compatible interface. The computer, the IBM Personal Computer XT/370, and this software allow users to run most System/370 Conversational Monitor System application programs unaltered in a desktop environment. The evolution of the development and details of the function of the hardware and software are described.