John Petersen

Articles (5)

TitleAuthor(s)PublicationDate
Dear Editor
Cleaning the ZX printer; secure the slot key in expansion devices; printing problems with joystick; avoid power supply related crashes;...
SyntaxSeptember 1983
JOY+
Program to demonstrate STICK command, button and diagonals.
Triangle Sinclair Users GroupSeptember & October 1984
Non-Breakable Programs 2068 Back-Up CopiesTimelinezAugust 1984
Non-Breakable Programs: 2068 Back-up Copies
Techniques for backing up non-breakable programs.
TimelinezAugust 1984
Non-Breakable Programs: 2068 Back-up Copies
Code to allow for backing up programs.
Triangle Sinclair Users GroupMay, June, July 1984

User Groups (1)

TitleLocationFounded
South Bay Computer Club
As of 1988, they met with the the West LA ZX Users Group.
2316 Walnut Ave, Manhattan Beach, California 90266