byte

Etymology

It is an alteration of bite, a morsel, after bit, a binary digit, and bit, a small piece, respelled with y so that it could not be confused with bit, the binary digit.^[2][3][1] Other dictionaries call it a blend of bit and bite,^[4][5][6] or an arbitrary formation based on them;^[7][8] Dictionary.com calls its origin uncertain.^[9] Wiktionary and Etymonline name Werner Buchholz of IBM as the coiner, Etymonline with "reputedly", Wiktionary placing it in 1956, in the early design of the IBM 7030 Stretch computer.^[1][10] Barnhart rejects the suggestion that it is an acronym of “b(inar)y (digi)t e(ight)” as an ingenious but unproven conjecture.^[5]

Earliest recorded meaning

A group of bits processed together: 1956, in a memo by W. Buchholz on the IBM Stretch system.^[2][3][10] Barnhart dates the word 1964 and Dictionary.com 1959.^[5][9]

Semantic evolution

The OED notes that a byte, originally any group of bits handled together, now usually has eight,^[2] and Etymonline, Merriam-Webster and Collins all give eight as the usual size.^[10][3][6] The word also became a unit of storage capacity and file size.^[2][6] On the pattern of bit and byte, the jocular terms nibble, half a byte (four bits), and gulp, a group of bytes, were coined.^[5] It is the base of kilobyte, megabyte and gigabyte.^[1]

Timeline

• 1956 – a group of bits handled as a unit.^[2][3][10] Barnhart dates the word 1964.^[5]

Meanings

Noun

1. A group of bits, usually eight, handled by a computer as a single unit of data, often representing one character.^[3][6][2]
2. Such a group as a unit of storage capacity or file size.^[2][6]

Word family

• kilobyte
• megabyte
• gigabyte
• terabyte
• zettabyte
• yottabyte

Related words

• bit
• bite
• nibble

References

1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c d e f g Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
3. ^ a b c d e Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
4. ^ The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
5. ^ a b c d e Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
6. ^ a b c d e Collins English Dictionary (2023), Glasgow: HarperCollins
7. ^ Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
8. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
9. ^ a b Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
10. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com