Terra Prefix Math
For example prefixes like mega giga and tera that we use to describe computer hard drive sizes think megabyte gigabyte and terabyte have specific meanings and uses that go far beyond the world of computers.
Terra prefix math. Prefix analog value digital value p pico 10 12 n nano 10 9 µ micro 10 6 m milli 10 3 k 10 3 1000 2 10 1024 m 10 6 1 000 000 2 20 1 048 576 g 10 9 1 000 000 000 2 30 1 073 741 824 t tera 10 12 1 000 000 000 000 2 40 1 099 511 627 776. The prefix kilo for example may be added to gram to indicate multiplication by one thousand. All metric prefixes used today are decadic each prefix has a unique symbol that is prepended to any unit symbol. Tera is term used for 10 12 10 raised to the power 12 or 1 followed by 12 zeroes.
In addition the final letters of the alphabet z and y appear in the largest si prefixes zetta and yotta. It is similar to the prefix penta five but without the letter n on the analogy of the prefix tera from the greek for monster for 1000 4 looking like tetra four with a letter missing. Tera 1 trillion comes from the greek word teras or teratos meaning marvel monster and has been in use since approximately 1947. The unit prefix was confirmed for use in the international system of units si in 1960.
One kilogram is equal to one thousand grams. 1 petametre 10 15 metres. It has the symbol t. A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or submultiple of the unit.
Prefix symbol decimal equivalent. Thousand giga which is 10 9 makes one tera. Tera is derived from the greek word τέρας teras meaning monster. Tera is a unit prefix in the metric system denoting multiplication by one trillion or 10 12 or 1 000 000 000 000 one trillion short scale.
The prefixes exa 1 quintillion and peta 1 quadrillion were added to the international system of units si in 1975. It denotes the fifth power of 1000 1000 5.