Apple Writer 2.1: Revision Utility

There is a patch diskette that fixes the problem Apple Writer 2.0 has with Parallel Cards. With the patch, Apple Writer can work under ProDOS with interface cards that worked with Apple Writer's DOS versions. Although Apple cards will still function normally from patched software, please label this disk.
The patch program is self-prompting. It asks for three or four disk swaps as it updates the Apple Writer disk with prodos 1.1.1 and updates the Apple Writer software with fixes. The fix changes Apple Writer's output routines so that commands go out with the the high bit set, allowing more interface cards to recognize commands.

ProDOS-based software used with parallel cards will probably continue to have this command recognition problem. Apple is telling hardware and software vendors about it and advising that future software and firmware updates take steps to alleviate the problem.
Published Date: Feb 20, 2012