Hi, Teri.
Good. You have Windows 2000, with SP4 installed. I believe that's the
latest available SP for Win2K. Don't worry about all the recent news about
SP2; that's for Windows XP, not for Windows 2000. And, since SPs are
cumulative, everything that was previously included in the long-ago SP2 for
Win2K is now included in SP4, which you have installed.
For very good technical reasons, computer numbers are usually expressed in
binary, or powers of two. 2^10 = 1024, and this number is used often in
computer literature and language. Since it is close to 1,000, computer
programmers long ago started calling this a Kilobyte, or KB, using the
ancient word for 1,000, combined with the term "byte" for a computer "word"
of 8 bits (BInary DIgits). Four bits is a nibble and 8 bits is a whole
bite, spelled byte to show that it is being used in its technical sense.
When computer capacities started getting bigger, the terms Megabyte (MB) and
then Gigabyte (GB) became common, meaning 1024^2 and 1024^3. Soon we'll
start throwing around the terms Terabyte and Petabyte as bigger hard drives
keep getting bigger.
But, for now...
261,616 / 1024 = 255.484375, or just under 256 MB.
261,616 * 1024 = 267,894,784 bytes
or, to say it another way, 256 MB =
256 * 1024 * 1024 = 268,435,456 bytes, and
268,435,456 - 267,894,784 = 540,672 bytes, and
540,672 / 1024 = 528 KB
So, your computer probably has a total of 256 MB, but 528 KB of that is not
available to the operating system because it is being used by something
else, probably your graphics card.
If you mention the make and model of your computer, someone here may be able
to confirm my guesses.
RC