Radio-Electronics December 1956 with "Relay Moe" article by Edmund Berkeley describing one of the earliest electronic computer games ever produced. Click image for full article.
Occasionally the question of the first computer video game comes up. Here's one that must be one of the first. This analog computer-based game is capable of determining it's own moves. Relay Moe is not the first computerized tic-tac-toe game, I am guessing the first appeared in the early 1950's.