"The ROM used only 89 KB of the available 256 KB. So to fill the chip, Apple put the photos of the development team into the ROM. To see these photos, press the debug button then type: G 41D89A"
If you're interested in this sort of digital archaeology, check out The Cutting Room Floor: http://tcrf.net/The_Cutting_Room_Floor It's focused on unearthing this sort of thing in games.
It blows my mind that those photos was taken over a quarter century ago, hidden by some playful programmers, and are only now unearthed by an entirely different generation of playful programmers. Cool stuff.
Back in the heyday of arcade video games, a lot of manufacturers would hide things like this in the code to prevent counterfeiting of the games. PC boards are easy to copy (the schematics were in the service manual), but counterfeiters would just duplicate the ROMs and change a few strings or sprites to give the appearance of a new game. The Easter eggs were triggerable by a certain sequence of moves to show the real authors of the code on-screen.
They were known about back in the day as well.. we all saw them because of fantastic mac shareware mags, macworld, etc.. they just haven't been seen in a while.
No idea if he's in any of the pics, but wouldn't be surprising if he isn't. Woz wasn't part of the Mac team, and was pretty much only an Apple employee on paper at the point those photos were taken.
Reading Steve Job's biography right now, and it was really surprising to me how little (almost insignificant) of a role Woz played at Apple after the first couple years there.
http://www.flickr.com/photos/damianward/3300112470/
"The ROM used only 89 KB of the available 256 KB. So to fill the chip, Apple put the photos of the development team into the ROM. To see these photos, press the debug button then type: G 41D89A"