Although personal computers only became popular with the development of the microprocessor and microcomputer, computer gaming on mainframes and minicomputers had previously already existed. OXO, an adaptation of tic-tac-toe for the EDSAC, debuted in 1952. Another pioneer computer game was developed in 1961, when MIT students Martin Graetz and Alan Kotok, with MIT student Steve Russell, developed Spacewar! On a PDP-1 mainframe computer used for statistical calculations.

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Subsite Electronics Reminds Us That April Is National Safe Digging Month. This April marks the tenth annual National Safe Digging Month, a designation formally recognized by the U. House of Representatives and Senate. Subsite Electronics, a Charles Machine Works Company, and 1,700 members of the Common Ground Alliance promote National Safe Digging Month to remind everyone to call 811 before they.