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Re: Apple2 keyboard connector pinout



On 27 Oct 1996, Artur Jasowicz wrote:

> I wonder if you (or anyone) know how keyboard knows when to send next 
> keystroke. For my clone I used to have a keyboard with its own CPU (6800)
> and it seemed to know when Apple was busy, say, reading a floppy. It would
> then store keystrokes in buffer and send them later. Is this possible or
> was it too long ago and I just don't remember?

	My WAG is that the buffer is inside the apple and not the 
keyboard.  There is a lot going on in there.  Just because it *looks* 
like the computer is busy with the disk drive, it doesn't mean it isn't 
doing *bunches* of other stuff.  Like video display, RAM refresh cycles, 
and keyboard input buffering.  The CPU services each one in turn fast 
enough to make it seem that it's all happening at once.

	Jim