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Controller vs Null - What's the difference?

controller | null |

As nouns the difference between controller and null

is that controller is one who controls something while null is zero, nil; the cardinal number before einn.

controller

English

Noun

(en noun)
  • One who controls something.
  • * (rfdate) (Dryden)
  • The great controller of our fate / Deigned to be man, and lived in low estate.
  • (business) A person who audits, and manages the financial affairs of a company or government; a comptroller.
  • (computing) A mechanism that controls or regulates the operation of a machine, especially a peripheral device in a computer.
  • (nautical) An iron block, usually bolted to a ship's deck, for controlling the running out of a chain cable. The links of the cable tend to drop into hollows in the block, and thus hold fast until disengaged.
  • Synonyms

    * administrator * foreman * chief, head, head man * comptroller * overseer * organizer * superintendent * supervisor

    Derived terms

    * memory controller * microcontroller

    null

    English

    Noun

    (en noun)
  • A non-existent or empty value or set of values.
  • Zero]] quantity of [[expression, expressions; nothing.
  • (Francis Bacon)
  • Something that has no force or meaning.
  • (computing) the ASCII or Unicode character (), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
  • (computing) the attribute of an entity that has no valid value.
  • Since no date of birth was entered for the patient, his age is null .
  • One of the beads in nulled work.
  • (statistics) null hypothesis
  • Adjective

    (en adjective)
  • Having no validity, "null and void"
  • insignificant
  • * 1924 , Marcel Proust, Within a Budding Grove :
  • In proportion as we descend the social scale our snobbishness fastens on to mere nothings which are perhaps no more null than the distinctions observed by the aristocracy, but, being more obscure, more peculiar to the individual, take us more by surprise.
  • absent or non-existent
  • (mathematics) of the null set
  • (mathematics) of or comprising a value of precisely zero
  • (genetics, of a mutation) causing a complete loss of gene function, amorphic.
  • Derived terms

    * nullity

    Verb

    (en verb)
  • to nullify; to annul
  • (Milton)

    See also

    * nil ----