We often hear or read about Internet speed, bandwidth or capacity of a pendrive or disk. ButWhat are they those units of measurement that are mentioned? Do you really know which represent?
It may happen that you want to buy a storage disk and do not know how to choose between the different varieties. Or what confuse a Bit with a Byte. The best thing for these cases is that you learn about it before taking a decision.
Through the content of this post, you can know all about these values. From its origins to the present. Read on to find out more.
What is a unit of measurement of information in computing and what is it for?
Like values like the meter or gram we use to measure objects, there are also measures for the storage of digital information. And in the same way as the others, it has a minimum unit which is called Bit. This value (Binary Digit) represents a 1 or 0 in the binary system. This way of measuring is the one used for computing since its inception. But to better understand what it is about it is necessary to know a little more about its history.
History and origin When and why are information measurement systems established?
Binary systems have been around for many years. From the Egyptians to the telegraph to the fathers of the digital age Touring and Shannon. The latter being the one that unites electronics with Boolean algebraic logic. Transforming decimal to simpler information systems for machines.
However, it was not until late fifties with machine design IBM 7030 Stretch what 8-bit structured byte is chosen as standard model. Due to the success of this computer, later devices continued to use this architecture. So the use of other number of bits it became unnecessary.
List of all information measures in computing and their equivalences
In a similar way, computer system unit scale uses international system prefixes. However, the SI use a system based on 10 units, while the binaries do it in base 2. To understand this a little better, continue with the following table. (We will take the decimal definition to express the multiples of bits, since it is the most used to express Internet speeds).
Let’s see below:
- Bit (b). Equals a 1 or a 0.
- Byte (B). Is equal to 8 Bit y is the size of, for example, a single letter.
- Kilobit (kb). Is equal to 1000 bits (103). It is the unit of measurement most used when indicating a Transfer speed from Internet. It should not be confused with the kB which is 8 times larger.
- Kilobyte (kB). Is equal to 1024 Bytes (210) can be the size of a very short text.
- Megabit (mb). Is equal to 1000 kilobits (106). Currently and thanks to the increase in transfer speeds through the web, it is possible to observe this unit of measure per second in the downloads.
- Megabyte (mB). Is equal to 1024 kilobytes (220). Continuing with the theme, it could be a short novel.
- Gigabit (gb). Equals 1000 mb (109). The appearance of fiber optics as a method of connecting to the web it has allowed the speed values to increase dramatically. That is why, thanks to the fact that it allows 2gb per second, we can enjoy Internet, telephone and cable television services through the same cable.
- Gigabyte (gB). Is equal to 1024 megabytes (230). What would a huge shelf full of books.
- Terabit (tb). Equals 1000 gb (1012) or a trillion bits. The difference between this unit and the tebibit (binary system) is 10%. The latter being the largest.
- TeraByte (tB). Is equal to 1024 gigabytes (240). Being corresponded to a large library.
Information measures in connection speed What are the differences between MB and Mb?
As an international standard Mb is used as a factor in time to indicate the transfer speed. However, it can be easy to confuse it with MB, that is, megabyte is eight times larger (1 Byte = 8 bit). Therefore it is important always corroborate this difference. Above all, in contracts with internet providers. For example, when purchasing a line of 400 Mbps (Megabits per second) will mean a rate of 50 MBps (Megabytes per second). Quite a smaller number if it has been confused.
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