The paper gives an overview of MPEG2 system sub part. The system part covers method of combining one or more audio, video or data streams in to one or more system streams, audio-visual synchronization, and buffer management. The paper does not cover system standard in depth. The paper is intended for novices to unravel MPEG2 system standard, tutorial to the MPEG2 system and help designer of MPEG2 system to build system without getting lost in intricacies of MPEG system part. The paper also covers DSM-CC part 6 of MPEG2 standard, splicing and jitter in short.