How much memory would it take to scan one color picture?

approximately a full page document/picture?

Answers:
One color, you mean Black only.
each pixel is represented with 1 bit, so every 8 bits will represents a byte, and so on.
for single page A4 size, Monochrome scan:
A4 ~= 8" x 11 "
for 300 dpi resolution scan, this means for each Inch a 300 dots (pixel) is scanned
8 x 11 = 88 sq. in.
88 x 300 = 26,400 dots
and each dot is only black so it will take one bit

so the file size will be
26,400 dots x 1 bit / dot = 26,400 bits
divide by 8
26,400 / 8 = 3,300 Bytes
So the file will be 3 KB

For full color just multiply total number of dots by (24 bits/ dot)

Regards,
:)
depends on the size
Not much, NONE if you jot it down on a postIT to remind yourself!
"OH, BY THE WAY, YOUR WELLLLCOME!"

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