说明：  两人乒乓球游戏机能够模拟乒乓球比赛的基本过程和规则，并能自动裁判和记分。乒乓球游戏机是用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的方向移动表示球的运动。在游戏机的两侧设计两个开关，一个是发球一个是击球。甲乙两人按乒乓球比赛的规则来操作开关，数码管做计分牌，自动计分。
(The two table tennis table tennis game can simulate the basic processes and rules, and can automatically judge and score. Table tennis 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 that the ball movement. In the game on both sides of the design of two switches, one is one shot off the tee. Both A and B according to the rules of table tennis competition to operate the switch, the digital control to do scoreboard, automatic scoring.)