27 Jul
2006
27 Jul
'06
2:50 p.m.
On Thursday 27 July 2006 17:42, Fred Cisin wrote:
On Thu, 27 Jul 2006, Patrick Finnegan wrote:
That was my point, though for anything but "1.2MB", "1.44MB",
"2.4MB" and "2.88MB" floppies, they don't call 1024000 bytes 1
MB.
A "300MB" IBM hard disk drive does contain (approximately) 300 million
bytes, not 307.2 million bytes.
Pat
--
Purdue University Research Computing --- http://www.rcac.purdue.edu/
The Computer Refuge --- http://computer-refuge.org
IBM has been rating hard drives in millions (or
thousands perhaps)
of characters since they started making them. "MB" meaning
"Million bytes" for magnetic storage media is hardly a new thing,
from what I can determine.
Not that they've been consistent either... "360kB" through
"1.44MB"
floppies, for instance.
IBM does not use 2**20, NOR 10**6 for meg of disk space!
For a meg of memory, they use 1048576, Mebi, 2**20, but
for a meg of disk space, they use 1024000, 1000Kibi, 2**10 * 10**3