Understanding Computer Sizes

• Sizes are calculated as either powers of two or powers of ten
  • Powers of two are known as *bibytes such as kibi-, mebi-, or gibi
  • Powers of ten are known as *bytes such as kilo-, mega, or giga
    • The important part is that the first two letters are the same
  • This accounts for the difference between advertised size and actual size
    • A hard drive may be advertised as 1TB, but only has 931GB of usable storage