Happy 40th birthday to the computer mouse

December 4, 2008 Computer peripherals giant Logitech recently shipped its billionth mouse, quite some feat given there are only 6.7 billion humans and a billion PCs on the planet. The mouse, in conjunction with the dastardly QWERTY keyboard, has become the cornerstone of the Computer Human Interface. The milestone comes within days of the fortieth anniversary of the first public demonstration of the computer mouse. On December 9, 1968, Douglas C. Engelbart gave a live public demonstration of the online system, NLS, which included the first mouse. The accompanying image is of the great grandaddy of the thing you’ve probably got in your hand as you read this.

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