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Kempston Mouse

93 bytes added, 15:44, 30 August 2015
/* Technical */
IC9 DM74LS257BN 3-STATE QUAD 2-DATA SELECTORS/MULTIPLEXERS
The mouse that comes with the interface has 2 buttons.It is a ball mouse. Unknown brand.Green label reads "Q.C. PASSED. MADE IN TAIWAN. R. O. C."
Port decoding to be confirmed.
Arnoldemu
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