Disk Copy Protection Methods & Footnotes
1. Gamma Goblins
http://www.hackzapple.com/phpBB2/viewtopic.php?t=17
2. The CHECKMEM routine from EDD
http://www.hackzapple.com/phpBB2/viewtopic.php?p=853#853
3. Sweet16
http://www.6502.org/source/interpreters/sweet16.htm
4. M-CODE interpreter
http://www.hackzapple.com/phpBB2/viewtopic.php?t=63
5. Sierra
http://en.wikipedia.org/wiki/Sierra_On_Line
6. Infocom
http://en.wikipedia.org/wiki/Infocom
7. HACK Z APPLE, Collection Apple II
http://www.hackzapple.com/INDEX0.HTM
8. Underground //e
http://boutillon.free.fr/
Other products mentioned in this issue
The Computist Project
Mike Maginnis' online collection of Computist magazines.
ReactiveMicro.com
Henry Courbis' online store for Apple II hardware.
ADTPro
Create, transfer, and convert disk images between an Apple II and a modern machine.
KansasFest
Annual Apple II convention in Kansas City, Missouri.
RetroChallenge 2008
Annual programming contest for retrocomputers, runs July only.
Golden Orchard disk image
CD-ROM collection of Apple II files, now available as a free download.
Golden Orchard CD-ROM
The original physical CD-ROM of Apple II files, still for sale.
Milliways: The Restaurant at the End of the Universe
The history of the previously unreleased sequel to Hitchhiker's Guide to the Galaxy, with playable online version (not Apple II compatible).
http://www.douglasadams.com/creations/infocom.php
Free online version of the original Hitchhiker's Guide to the Galaxy (not Apple II compatible)
Silvern Castle
A detailed, nuanced, and entertaining 8-bit fantasy role-playing game (RPG).