Difference between revisions of "Bits Bytes etc"
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==The Bit== | ==The Bit== | ||
| + | The Bit is a single binary digit used in computing and is represented using either a 1 or 0. The two values of a single digit act as an On or Off function or True/False and putting them together can result in unique functions as 1 digit can control one variable and another digit can control an entirely different variable. By putting multiple bits together functions become more complex and have more outcomes as if you set one value to true it can lead to another set of values different to what you would get if it was set to false. Putting 8 of theses bits together is called a byte (see pg 2.3) | ||
==The Byte== | ==The Byte== | ||
Revision as of 10:58, 12 September 2018
Contents
Units
https://www.youtube.com/watch?v=9kzCoDFrMGE&list=PLCiOXwirraUCa2MYf_oSM94uvwIGPMZ1q
New Units
Computer Science units are now based around the powers of 10
Powers of 10
The Bit
The Bit is a single binary digit used in computing and is represented using either a 1 or 0. The two values of a single digit act as an On or Off function or True/False and putting them together can result in unique functions as 1 digit can control one variable and another digit can control an entirely different variable. By putting multiple bits together functions become more complex and have more outcomes as if you set one value to true it can lead to another set of values different to what you would get if it was set to false. Putting 8 of theses bits together is called a byte (see pg 2.3)
The Byte
Kilo Byte
Mega Byte
Giga Byte
Tera Byte
1 TeraByte = 1,000 GigaByte
Peta Byte
Symbol PB Power 10^15
Exa Byte
Symbol: EB Power: 10^18
Zetta Byte
Yotta Byte
Old Units
Units based around powers of 2, according to the spec you don't need to know these
Powers of 2
Kibi Byte
Mebi Byte
Gibi Byte
Tebi Byte
A tebibyte is a unit of data storage that equals 2 to the 40th power, or 1,099,511,627,776 bytes. While a terabyte can be estimated as 10^12 or 1,000,000,000,000 bytes, a tebibyte is exactly 1,099,511,627,776 bytes.
Pebi Byte
Exbi Byte
Zebi Byte
Yobi Byte
yeet
