This article is from the Apple II Csa2 FAQ, by Jeff Hurlburt with numerous contributions by others.
The following comes from the BitMouse card manual, which I have installed in my //e: Switch 1- This switch controls mouse tracking sensitivity OFF: Slow ON: Fast Switch 4- CPU speed OFF: 1 to 4 MHz ON: 5+ MHz Switches 2&3 currently have no function. By: Alberto Roffe
 
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