On Nov 30, 2011, at 4:45 PM, Bruce Johnson wrote:

Which was the last model that used ADB for the internal keyboard and trackpad?

Either the Lombard (I know this for certain) or the Pismo G3 (maybe, I don't remember); Apple had gone away from ADB for good before the G4 powerbooks came out.

All the G3 iceBooks have ADB keyboard & trackpad. It appears all the PPC iBooks & PowerBooks including the G4's also have legacy ADB keyboards & trackpads. I determined this by booting my G3 iceBook using verbose Cmd-v and noting the "ADB present:8c" which comes nearly first thing in the verbose startup dialog. I then Googled "ADB present: 8c" and the first hit in Google says "PowerBook g4 won't boot" and has a copy of the verbose dialog from a G4 PowerBook that also has ADB keyboard & trackpad. From this I think it's reasonable to assume all PPC Apple notebooks use ADB keyboard & trackpad.

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