Why we get less memory space than it mentioned in USB flashdrive/Hard Disk/Memory stick.....

Many of us often think (even i was before) that why we get less memory space in computer world that mentioned .Like in 4 GB pen drive (USB) we get maximun free space 3.73 GB.Am i right ?
Even in HD of 160 GB we get approx 149 GB.Similar case of memory stick and so and so on....

Let me explain clearly the shadow behind it.It is due to conversion of bytes in to Kilo Bytes(KB),
Kilo Bytes in to Mega Bytes(Mb) ,and ofcourse Mega Bytes to Giga Bytes(Gb).Where the factor is of 1024 ,not 1000.

Ok ,let me expalin u clearly this with an example....

Let's take an example of 4 Gb USB pen drive where we at max 3.73 Gb

4 GB = 4 Giga Bytes =4 * (10 ^9) Bytes =4000000000 Bytes (as 1 Giga = 10 ^ 9)

dividing by 1024 = 39,06,250, Kb (as 1 Kb = 1024 Bytes)

dividing again by 1024 = 3814.7 Mb ( as 1 Mb = 1024 Kb)

dividing again by 1024 = 3.73 Gb

So, finally 3.73 Gb is the maximum we can get.



Now, i suppose everybody got my point.........................Lipak

E-mail : lipaknitjsr@gmail.com