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YOU CAN READ ABOUT THE CAL COMP PLOTTERS IN THE
ARTICLE ON THE PDP-1,www.computer-history.info,and Early
Computer Graphics Work and Equipment, all on Page 4.."
The book, courtesy of the Digibarn Museum in Santa Cruz, CA,
highlights Digital Mona. Mr. Nelson states in the article, "This is not a computer picture. There is no such thing. It's a quantization put out on a lineprinter".
This article is a review of Ted Nelson's book that led the way for computer ideas in the coming years.
The gentleman doing the "self interview" mentions H. Philip Peterson in his discourse on computer graphics development. Mr. Michael continues with "You have the correct name of the person who did the work. H.
Philip Peterson was at the time employed by CDC in Burlington, MA.
He used a scanner (at Lincoln Labs, I believe) to scan a 35mm slide
of the Mona Lisa. He then designed a two-digit number system
where photographic density was related to the numbers he's
designed; the bigger the number, the bigger the photographic density.
Then using a 30 inch CAL COMP plotter he wrote the appropriate
numbers left to right, and top to bottom. The Cal Comp is a pen and
ink incremental plotter. Starting at the upper left corner, he
lowered the pen and it wasn't raised until he'd finished drawing the
entire picture and arrived at the lower right.