I found this gem on a site I visit. It amused me and so cheered me up.
Hope it does the same for you! If you've got the answer - please let me know.....in a language I can understand!
My computer has a 200 GB hard drive. What’s GB stand for?
What’s a MB? How much data can my computer hard drive
A:If I asked you how many ounces are in a cup,
you would be able to say that there are eight ounces in a cup and that would be
it. And it should be that way for your hard drive question, right?
perfect world. We’re talking about computers, remember?
Let’s start with
a list of prefixes:
kilo = meaning 1,000. (one thousand)
meaning 1,000,000. (one million)
giga = meaning 1,000,000,000 (one billion)
tera = meaning 1,000,000,000,000 (one trillion)
So in answer to your
question: GB is short for Gigabyte. MB is short for Megabyte. With a 200
Gigabyte (GB) hard drive, you have 200 billion bytes of data storage. If you had
a 200 Megabyte hard drive, you have 200 million bytes of data storage.
Except that you don’t. You actually have more. (Huh?) Here’s how and
A byte (which stands for "BinarY digiT Eight.") is a way to measure
data storage. The first computers could only send 8 bits of data at a time, so
it was natural to start writing code in sets of 8. Eight bits of data then
became known as a byte. (By the way, a bit is represented with a lowercase "b,"
whereas a byte is represented with an uppercase "b" (B). So Kb is kilobits, and
KB is kilobytes.)
Computer data is measured using the Binary Code System
(counted by factors of two: 1, 2, 4, 8, 16, 32, 64, etc), but the prefixes are
based on the metric system! Hard drive manufacturers decided it would be easier
to just go according to the way the metric system is supposed to work and –
rather than give the exact amount of data storage – decided to round the numbers
off, hence 1,024 bytes became 1,000 bytes.
Here’s the low end of the
data measuring scale:
1 bit = a 1 or 0 (b)
4 bits = 1 nybble (which
is ½ of a byte, meaning that two nybbles equal one byte (well, it depends on
what you’re byting)
8 bits = 1 byte (B)
(Note that the very lowest
measurement of data storage that a computer can recognize is a bit.)
here’s how the scale progresses:
A couple of FYI’s:
All of the hard drives in the world
combined do not add up to even one Zettabyte.
No computer in the world has
yet to achieve a yottabyte of data storage.
So really - how much data can
your 200GB hard drive hold?
You do the math.
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