twos complement

Computing Dictionary

twos complement definition

A system used in some computers to represent negative numbers in binary. Each bit of the number is inverted (zeros are replaced with ones and vice versa), as for ones complement, but then one (000...0001) is added (ignoring overflow). This avoids the two representations for zero found in ones complement by using all ones to represent -1.
... 000...00011 = +3 000...00010 = +2 000...00001 = +1 000...00000 = 0 111...11111 = -1 111...11110 = -2 111...11101 = -3 ...
This representation simplifies the logic required for addition and subtraction, at the expense of a little extra complexity for negation.

The Free On-line Dictionary of Computing, © Denis Howe 2010
Cite This Source
Previous Definition: twort, frederick william
Next Definition: twoscore
Words Near: twos complement
More from
Synonyms and Antonyms for twos complement
More from
Search for articles containing twos complement
More from Translator Word FAQs presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature