Hard Disk space differ from advertised

So you did you buy a new hard disk from the Comex that ended yesterday?

Source: TechFresh.net

Imagine this: You bought a 2TB hard disk and went home happily and plug it into your computer. But to your dismay it only shows up as 1.8TB. You feel cheated by the company. But this happens to all manufacturer. Why?

This is due to the fact on how manufacturer and Windows(If you are using windows) determine memory unit.
Data is stored in a unit called binary, the actual calculation would be using base 2 calculations(maths related, i shall not explain further as it will be another topic).

So Windows actually calculate memory base on base 2, thus making 1024 MB equivalent to 1GB and 1024 GB to be equivalent to 1TB.

But the manufacturer calculate the memory based on decimal. In another words, to them, 1000 MB is 1GB. Thus this explain what you see on label is not what you will get from using.

So in conclusion, do not expect to get a full 2TB if you are buying a 2TB hard disk. Hopefully, they manufacturer would stop all this marketing stunt tell us what base they are using on the label to prevent misconceptions.