2007-02-27 19:00:59 · 5 answers · asked by robin 3 in Computers & Internet ➔ Other - Computers
They always multiple it by two, in that case when you think about buying it you always think that you will save more by buying as twice as capacity for few more dollars. That's my wild guess...
2007-02-27 19:11:09 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Because everything to do with computers is always related to numbers that are powers of 2 (e.g. 256 is 2^8, 512 is 2^9), as that's what their binary language is. You'll find that even the 1 and 2 GB ones aren't exactly that - they're probably 1024 MB (2^10) and 2048 MB (2^11). So no, there probably won't be anything around the 700MB mark.
2007-02-28 03:09:55 · answer #2 · answered by Craig H 3 · 0⤊ 0⤋
Cos the memory is standardized to such number that can be found from binary number. The number of 1111 1111 1111 is translated to:
1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048
It will always go by a double of the lower number. That's why there's no 3GB pendrive but 4GB.
2007-02-28 03:12:21 · answer #3 · answered by Eff 2 · 1⤊ 0⤋
It is about the digits: 0 and 1, every information is coded with these two digits. This is a bit, next to it it is the byte that has 8 bits, and it is 2^3.
To say it right: in IT a power of 2 is a round number (there is a joke: A talk in a soft development company "Can you give me 500$?", "Let's make it 512 - rounded number!"). It could be a pendrive of 700 MB, but it is more a convention to use the power of 2 than straight practical purposes.
2007-02-28 03:14:18 · answer #4 · answered by Anatol N 2 · 0⤊ 0⤋
When they started making pen(flash)drives, they built them off of the configuration of desktop memory.
2007-02-28 03:10:29 · answer #5 · answered by jsmithavenger 1 · 0⤊ 0⤋