Forth source code for Apple II Video-Cam, version 1.50
This is Apple II source code, in the Forth language, to interface the Apple II with a video interface card manufacturer by The Computer Institute of Brunswick, ME. According to Wikipedia, Computer Institute was (is?) "a nonprofit scientific and cultural foundation involved in education research and the study of human/computer ecology."
Not much more is known about this project.
Code written circa August 1984.
( VIDEO-CAM - HARDWARE < 5/31/84>140)
THE VIDEO-CAM HARDWARE CONSISTS OF AN
INTERFACE, A VIDEO CAMERA, AND
INTERCONNECTING CABBLES.
INTERFACE DESCRITION:
THE VIDEO INTERFACE CARD (MANUFACTURED
BY THE COMPUTER INSTITUTE, BRUNSWICK ME
04011) CONTAINS THE NECESSARY CIRCUTRY
TO SYCHRONIZE THE COMPUTER AND THE
CAMERA SIGNALS AS WELL AS ALLOWING THE
VALUE OF THE TV SIGNAL TO BE COMPARED
WITH TWO THRESHOLD VALUES