1. A method of recognizing a process in a full-system Industry Standard Architecture emulator, comprising the steps of: recognizing a process based on a base address of a page table of the process; recognizing a switch between the processes when said base address of page table changes; and recognizing termination of a recorded process when the base address of a page table of a process which tries to modify the page table is not equal to the base address of the page table of the recorded process in the page table.