Apple IIc: Variations in keyboard ROM

Apple IIc ROMs generate characters from differing positions on the keyboard, depending on the ROM revision.
Some IIc's in Dvorak mode generate the characters from the keyboard positions shown on page 6 of the IIc reference
manual.

Some of the earlier Apple IIc ROM's had errors that caused the keyboard discrepancy. The current and correct verson of the the keyboard ROM is 'D'. Page 16 of the IIc manual shows the standard Dvorak layout.
Published Date: Feb 19, 2012