jayintune writes "2old2play has an article up talking about the birth of
PC gaming and how computers turned into entertainment. From the article, 'It's difficult to pin down what the first true
PC game was. Broadly defined, early computer games date back to primitive missile simulators (circa 1947) and Tic-Tac-Toe games on very early computers with analog electronics. These computers were essentially glorified calculators with a bit of storage (in some cases, "storage" meant the position of a physical relay as big as your fist, or the on/off condition of a vacuum tube).'"

Link To Original Article