Page:Calligraphy for computers (Hershey, 1967) (IA DTIC AD0662398).djvu/12

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of actual performance, the data in the following table are representa¬tive of printing speeds.

Printing System
(stroke vs shape)
Printing Speed
(characters/second)
Dot plot on S-C 4010 530
Vector plot on S-C 4020 550
Vector plot on S-C 4060 2200
Print on Linotron 620
Print on S-C 4010 17400
Print on S-C 4020 17400
Print on S-C 4060 90000

The above estimates do not include the time on a general purpose computer which would be required for the preparation of input to the cathode ray printers.

RESOLUTION

Model

In order to gain some insight into possible factors in the resolution of a cathode ray printer, an analysis will be made on a specific model in which the raster on the cathode ray screen covers an area 10 cm × 10 cm square and contains 1024 × 1024 raster units. It will be assumed that hard copy from the cathode ray printer covers an area 6″ × 6″ and is viewed by a reader's eye at the conventional distance of 10″.

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