Give Credit For The Mouse Where Credit Is Due

In "Xerox" (The Corporation, Apr. 12), you claim that Xerox Corp. created the mouse. That just ain't true. Douglas C. Engelbart (then of Stanford Research Institute, now known as SRI International) demonstrated the first mouse in 1968. I've had the pleasure of holding that first mouse. It's a clunky thing, about 3 inches wide, 4 inches deep, and 2.5 inches high. It's made of wood and has two wheels, one each for horizontal and vertical movement--no mouse balls here. On top is one little red push button.

The computer industry moves fast--very, very fast. But we should never forget to whom we owe our debts. Xerox Palo Alto Research Center rightfully deserves much of the credit for developing a full-fledged graphical user interface, but almost all of it was built on pieces created by Engelbart.

Aahz Maruch

San Carlos, Calif.

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