A brief history of computer displays

From blinking lights and punch cards to LCDs and 3D flat panels, we trace the 70-year history of the tech that users rely on to see what a computer is doing.

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Blinking Indicator Lights

While almost every early computer provided some sort of hard-copy printout, the earliest days of digital displays were dominated by rows of blinking indicator lights -- tiny light bulbs that flashed on and off when the computer processed certain instructions or accessed memory locations.

Photos: Computer History Museum, Deutsches Museum

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A brief history of computer displays

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