Techno blog

It’s Important that we should know more about the files and their file sizes when working with them. So that we can understand the storage space required to store the data. Its interesting too!

There are several representations of data such as Bytes, Kilobytes, Mega, Giga, Tera etc.. Lets have some brief introduction of them below:

Kibi, mebi, gibi, tebi, pebi, and exbi are binary prefix multipliers that, in 1998, were approved as a standard by the International Electrotechnical Commission (IEC) in an effort to eliminate the confusion that sometimes occurs between decimal (power-of-10) and binary (power-of-2) numeration terms.

At present, the prefix multipliers kilo- (k or K), mega- (M), giga- (G), tera- (T), peta- (P), and exa- (E) are ambiguous. In most of the physical sciences, and when describing quantities of objects generally, these multipliers refer to powers of 10. However, when used to define data quantity in terms of bytes, they refer to powers of 2. The following table denotes the most often-used prefixes and their meanings.

The power-of-10 multipliers and the power-of-2 multipliers for a given word prefix are almost, but not quite, the same. For example, the power-of-10 definition of kilo- (k) refers to 1,000, while the power-of-2 definition (K) refers to 1,024. As if this is not confusing enough, when referring to a data speed of one kilobit per second (1 kbps), analysts generally mean 1,000 bits per second (10³ bps), but when talking about one kilobyte (1 KB) of data storage, they usually mean 1,024 bytes (2¹⁰ B). This prevailing confusion could be eliminated (some computer scientists believe) by adopting special prefixes referring to the binary quantities. The proposed scheme is as follows.

I hope this will help you in knowing the file sizes.. Let me know your comments