Sil Horwitz (silh@iag.net)
Sat, 20 Feb 1999 02:05:17 -0500
At 99/02/20 01:14 AM -0800, Jewelia wrote:
>ghezzz do i feel dumb---i am acronym weak this year--what the heck is a CCD?
Charge Coupled Device - a type of semiconductor (you know, like transistor).
Photo CCDs are light-sensitive, and are used in arrays as the target for
digital (and video) cameras. (Yes, Jewelia, there is a difference: digital -
what a badly used word! - is directly compatible with computers, while normal
video is analog. There are digital video cameras out there, btw, but they need
an A-D converter to show on TV.)
A-D is a simple acronym for "analog to digital" or the reverse. They getcha,
don't they? Don't think I have to explain "TV".
Sil Horwitz, FPSA
Technical Editor, PSA Journal
silh@iag.net
Visit http://www.psa-photo.org/
Personal page: http://www.iag.net/~silh/
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