Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

kilobyte

play
noun ki·lo·byte \-ˌbīt\

Simple Definition of kilobyte

  • : a unit of computer information equal to 1,024 bytes

Source: Merriam-Webster's Learner's Dictionary

Full Definition of kilobyte

  1. :  1024 bytes

Did You Know?

Knowing the root kilo-, you might think a kilobyte would be exactly 1,000 bytes. But actually a kilobyte represents the power of 2 that comes closest to 1,000: that is, 210 (2 to the 10th power), or 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2, or 1,024. Why 2? Because the capacity of memory chips is always based on powers of 2. Locations in electronic memory circuits are identified by binary numbers (numbers that use only the digits 0 and 1), so the number of addressable locations becomes a power of 2.

Origin and Etymology of kilobyte

from the fact that 1024 (210) is the power of 2 closest to 1000


First Known Use: 1970


KILOBYTE Defined for Kids

kilobyte

play
noun ki·lo·byte \ˈki-lə-ˌbīt\

Definition of kilobyte for Students

  1. :  a unit of computer information storage equal to 1024 bytes




Learn More about kilobyte


Seen and Heard

What made you want to look up kilobyte? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

at a gallop

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

alphabet-pasta-spelling-help

Which is the correct spelling?

acommodate acommadate accommodate accomodate
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ