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BBS in a Box 7
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BBS in a Box - Macintosh - Volume VII (BBS in a Box) (January 1993).iso
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card_72580.txt
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1989-05-05
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-- card: 72580 from stack: in
-- bmap block id: 0
-- flags: 0000
-- background id: 2287
-- name:
-- part contents for background part 1
----- text -----
MacWorld-pg 116
-- part contents for background part 11
----- text -----
10/88
-- part contents for background part 12
----- text -----
A Halftone Handbook
Halftones
Image scanners
Screen ruling (frequency)
Angle
dithering
TIFF; RIFF; ten-ninety halftone (10/90)
xref MacUser-pg 257 (2/89) excellent tutorial on half tone mechanics and gray scales.