[Frode] felt that using the keyboard for gaming on his old IBM XT computer was simply too noisy. He came up with a much quieter way to game by building an XT adapter for an original NES controller.

UNITED STATES - DECEMBER 07: The IBM Personal Computer System was introduced to ... did not make an appearance until the release of IBM's XT machine in 1983. (Photo by SSPL/Getty Images) It ...

An 83-key keyboard introduced with the IBM PC in 1981 and the PC XT in 1983. The keyboard introduced ... THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.