Macintosh hardware and OS
Get into the debugger
Set PC to 41D789A (i.e., >G 41D89A at the prompt)
Macintosh II models (exact types uncertain); Mac SE/30 (hardware)
Set the system clock to the American release of the machine
Reboot, holding down command-option-model name characters (e.g., on an FX you hold down cmnd-opt-f-x)
Mac SE, Mac II ci
On a Macintosh SE, hit the programmer's switch, then type G 41D89A
On a Macintosh IIci, first set the date to 09/20/89, then restart the machine and hold down Command+Opt+c+i during the reboot.
And if you're lucky enough to have an original copy of MultiFinder, the About box has a simple tremendous list of credits. But all is not lost in the newer versions. Leave the `About MultiFinder' box open for about an hour. It will turn into the message
System 7
Under System 7 with the Finder running, select "About Finder" on the
Apple menu with the OPTION key to see a list of all developers.
Using OPTION-COMMAND does that and also turns the cursor into a smiley.