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Hour 17. Using Windows on the Road > Going Wireless with Infrared

Going Wireless with Infrared

In the 1980s, IBM introduced the PCJr, a PC designed for home use and one that used an infrared port for its keyboard. You cannot see infrared light, but infrared signals work well in remote-control devices such as television remotes. A wire on the keyboard did not encumber the user; the user could lean back in the chair and point the keyboard in the general direction of the PC to use the PCJr.

IBM was years ahead of its time and years behind the market. The PCJr's sales bombed.


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