Bits and Bytes

All data on a computer is stored in binary – either a 0 or 1. Each of these binary digits is called a bit. 8 of these bits together is called a byte.

Order of magnitude (each one is 1,000 times the size of the previous one).

  • Byte
  • Kilobyte
  • Megabyte
  • Gigabyte
  • Terabyte
  • Petabyte
  • Exabyte
  • Zettabyte
  • Yottabyte

Typical File Sizes

  • Word Doc – 20Kb
  • Small Photo – 1MB
  • MP3 Song – 3MB
  • Movie – 1GB
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