More colors (Re: Blinking Light Apple II)

["Ralph Hyre" <rwhyre@gmail.com>]

The LEDs should at least be multicolor, for several reasons:

1) It's a 6, not an 8. 'Think different', as they used to say

2)  The original Apple logo was 6 colors, originally

3) More useful data for debugging.  The lights could indicate bus
status when not being used to show the 'on or off' status of address
lines or data.

Red could indicate a Read, Green a Write, Yellow would indicate a
healthy mix of
activity. (That's the way the bipolar LEDs worked, they were Red when
forward biased, green when reversed - see
http://www.play-hookey.com/digital/experiments/bicolor_led.html
for details)