With the combination of the technology of Single-chip Microcomputers and networks , and by optimizing the pattern and the controIIing model of data packets, meanwhile by introducing frame checking sequences, a protocol of multi-computer communication among Single-chip Microcomputers is designed. Experiments indicate that this protocol can run well on the networks based on " AT89S52" with high reliability, and that it can improve the processing velocity and efficiency greatly. It realizes the communication between a client computer and its ser...