It has happened to most of us. We buy a new hard drive (or maybe a flash
drive) with mind boggling storage capacity only to find that it has
less space than what was mentioned on the box. Angered, we start cursing
the manufacturer and our dealer for false marketing thinking that they
should be sued for doing this. Hey, but have you ever wondered how they
continue to do this again and again without getting into legal trouble?
The answer is that they are not marketing it falsely at all. Surprised? I'll explain.
A manufacturer considers 1 Megabyte to be 1000 Kilobytes, 1 Gigabyte to be 1000 Megabytes, 1 Terabyte to be 1000 Gigabytes and so on. This is correct considering that kilo means 1000 and mega means 1000000 (10^6). However, computers calculate on base 2 and to them, 1 MB is actually 1024 kilobytes, 1GB is 1024MB and 1 TB is 1024GB. This difference in the method of computation is responsible for this "missing space."
Lets take an example of a 500 GB hard disk.
From a manufacturer's point of view, the 500GB will have 500*1000*1000*1000 = 500000000000 bytes.
From a computer's point of view, 500GB is actually 500*1024*1024*1024 = 536870912000 bytes.
So, a hard drive that promises to have 500 GB storage space will actually display 465.66GB, 536870912000-500000000000 = 36870912000 bytes (34.34GB) less storage space when connected to a computer.
Take a look at the table given above to see how much space is "lost" due to computers working on a base 2 system. As you can see, with the increase in capacity of the storage device, there is an increase in the missing space.
The answer is that they are not marketing it falsely at all. Surprised? I'll explain.
A manufacturer considers 1 Megabyte to be 1000 Kilobytes, 1 Gigabyte to be 1000 Megabytes, 1 Terabyte to be 1000 Gigabytes and so on. This is correct considering that kilo means 1000 and mega means 1000000 (10^6). However, computers calculate on base 2 and to them, 1 MB is actually 1024 kilobytes, 1GB is 1024MB and 1 TB is 1024GB. This difference in the method of computation is responsible for this "missing space."
Lets take an example of a 500 GB hard disk.
From a manufacturer's point of view, the 500GB will have 500*1000*1000*1000 = 500000000000 bytes.
From a computer's point of view, 500GB is actually 500*1024*1024*1024 = 536870912000 bytes.
So, a hard drive that promises to have 500 GB storage space will actually display 465.66GB, 536870912000-500000000000 = 36870912000 bytes (34.34GB) less storage space when connected to a computer.
| Space Promised | Displayed on a computer | Difference |
| 100GB | 93.13GB | 6.87GB |
| 250GB | 232.83GB | 17.17GB |
| 500GB | 465.66GB | 34.34GB |
| 1TB | 931.32GB | 92.68GB |
| 2TB | 1862.64GB | 185.36GB |
Take a look at the table given above to see how much space is "lost" due to computers working on a base 2 system. As you can see, with the increase in capacity of the storage device, there is an increase in the missing space.
With
the tremendous increase in the hackers over 2008-2011, Security is
being the major problem among the people who don’t even know hacking and
are newbies. It should be any time when your Account is being hijacked
or hacked by an person(usually hacker). As Google provides Gmail which
offers good services and facilities than any other, so most of the
people are on it. Being hacked by Google account means you lost your
other accounts associated with Gmail also like Orkut, Google Checkout,
Blogger, AdSense, Google Docs, Picasa accounts etc. So Here are the 3
options suggested by the Google Support team should be taken when you
forget your Gmail password or if someone else takes ownership of your
Google Account and changes the password:
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