Have you ever wondered why a pen drive/hard drive has less storage space than promised?
February 12, 2016 Leave a comment
Have you ever noticed how manufacturers and our dealers continue to do this again and again without getting sued?
They are not marketing it falsely, but smartly!
While manufacturing a pen drive/hard rive they consider:
1 MB = 1000 KB
1 GB = 1000 MB
1 TB = 1000 GB and so on.
However, our computers work on base 2 and for them:
1 MB = 1024 KB
1GB = 1024 MB
1 TB = 1024 GB
This difference in the method of computation is responsible for this “missing space.”
Here’s an example of a 16GB SanDisk pen drive.
From SanDisk manufacturer’s point of view, the 16GB will have 16*1000*1000*1000 = 16,000,000,000 bytes.
From a computer’s point of view, 16GB is actually
16*1024*1024*1024 = 17,179,869,184 bytes.
So, the SanDisk pen drive that promises to have 16 GB storage space will actually display 14.9GB.
17,179,869,184 – 16,000,000,000 = 1,179,869,184 bytes (1.1 GB) less storage space when connected to a computer.
Things aren’t so bad when you purchase small storage devices like pen drives, memory cards but with external hard disks.
Just look at the table below:
Take a close look at the box of your hard drive and you’ll see a disclaimer like this: