PROGRAM SYNCHRONIZATION ON FIRST AND SECOND COMPUTERS BY DETERMINING WHETHER INFORMATION TRANSMITTED BY FIRST COMPUTER IS AN ACCEPTABLE OR UNACCEPTABLE INPUT TO SECOND COMPUTER PROGRAM

摘要

A computer system and method for executing the synchronization of a programexecuting on a first computer with a program executing on a second computer,eachprogram transmitting information to the other program and remaining at itscurrentprogram step until receiving an acknowledgment that the transmittedinformation wasone of a set of acceptable inputs to the other program. If one of the programsreceives anacceptable input or an acknowledgment of same, it advances to its next programstep. Ifone of the programs receives an unacceptable input or non-acknowledgment ofreceiptof an acceptable input, it remains at its current program step.