Hard disk manufacturer:
1KB=1000Byte bytes, 1MB=1000KB, 1GB=1000MB, 1TB=1000GB
operating system:
1KB=1024Bytes, 1MB=1024KB, 1GB=1024MB, 1TB=1024GB
Hard disk manufacturers define MB, GB, TB and other units in a 10-bit manner.
That is to say, under the definition of the hard disk manufacturer, 1MB = 10 to the 6th power (1000 * 1000) bytes,
1GB is equal to 10's 9th power bytes, and 1TB is equal to 10's 12th power bytes;
But under the operating system, the definition used is a 2-digit way.
So the operating system's 1MB = 1024 * 1024 bytes,
See the difference?
Still can't see it? It doesn't matter, you can understand after reading the following examples.
Vendor capacity calculation method:
160GB=160,000MB=160,000,000KB=160,000,000,000 bytes
Converted into operating system calculation method:
160,000,000,000 bytes/1024=156,250,000KB/1024=152,588MB/1024
=149GB
One of the smallest External Hard Drives available at less than 5" long, 3" Wide and less than 0.5" in height
BPackage Contents
1x 160gb Portable USB 3.0 Hard Drive
1x USB 3.0 Cable
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