gigabyte terabyte petabyte

Data volume units such as terabytes, gigabytes, and petabytes are used to measure the amount of storage required to store a single character of text. Bits and bytes are the smallest units of data, and can be converted to larger units such as kilobytes, megabytes, and gigabytes. A terabyte is equal to 1,000 gigabytes, a petabyte is equal to 1,000 terabytes, and a yottabyte is equal to 1,000 petabytes. Examples of data volumes include a paragraph of a text document, all the X-rays in a large hospital, half the contents of all US academic research libraries, one fifth of the words people have ever spoken, as much information as grains of sand on all the world’s beaches, and as much information as atoms in 7,000 human bodies. 1 2 MB, GB, TB, PB, EB, ZB, YB, and BB are terms used to describe disk space or data storage space and system memory. 3