乒乓球游戏机是模拟乒乓球比赛的过程和规则，并能自动裁判和记分的模拟装置。两人乒乓游戏机是用8个发光二极管代表乒乓球台，中间两个发光二极管兼做乒乓球网，用点亮的发光二极管按一定方向移动来表示球的运动，在游戏机的两侧个设置发球和击球开关，甲乙双方按乒乓球比赛规则来操作开关。设置自动记分电路，甲、乙双方各用7段译码管进行记分显示，每计满21分为1局，然后记分清零，重新开始新一局比赛。 -Table tennis table tennis game is a simulation of the process and rules, and can automatically referees and scoring of the simulator. The two ping-pong game is eight light-emitting diodes on behalf of table-tennis table, table tennis, also cater to the middle of two light-emitting diode networks, with the light-emitting diode according to a certain move to indicate the movement of the ball in the game on both sides of a set tee and hitting switches, A and B according to their table tennis rules of the game to operate switches. Automatic scoring circuit, A, B with 7-segment decoding each side scoring display tubes, each divided into a Bureau of the expiration of 21, then scoring cleared, re-start a new one single game.