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From: cca@newton.physics.purdue.edu (Charles C. Allen)
Newsgroups: comp.sys.mac.apps
Subject: Re: Screensnap 2.2 memory problems?
Message-ID: <3676@newton.physics.purdue.edu>
Date: 9 May 90 04:58:13 GMT
References: <3667@newton.physics.purdue.edu> <7258@ncar.ucar.edu>
Organization: Purdue Univ. Physics Dept, W.Lafayette, IN
Lines: 15

>>                                                      Now, since a
>> full-screen image should take less than 1M (1024x768x8)....

> 1024x768x8 = 6,291,456

I was obviously a little too terse with the original numbers.  A
1024x1024 pixel screen has 2^20 = 1 048 576 = pixels (a "computer"
million, usually denoted by the prefix "M").  On an 8-bit color
screen, each pixel takes 1 byte.  Hence a "1024x1024x8" screen takes
1Mbyte of memory.

Charles Allen			Internet: cca@newton.physics.purdue.edu
Department of Physics		HEPnet:   purdnu::allen, fnal::cca
Purdue University		talknet:  317/494-9776
West Lafayette, IN  47907