address bus


Definition of address bus

: an element in a computer CPU that transmits the location of stored information The address bus allows the CPU to send the address to RAM, and the data bus allows the actual data transfer to the CPU. The term bus itself refers to the connection between the two devices that allows them to communicate.— Neil Randall, PC Magazine, 21 Oct. 1997

Note: When a user or program needs information that is stored in a computer’s memory, the address bus tells the computer where to look for it.

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

First Known Use of address bus

1956, in the meaning defined above

Keep scrolling for more

Learn More about address bus

Time Traveler for address bus

Time Traveler

The first known use of address bus was in 1956

See more words from the same year

Statistics for address bus

Cite this Entry

“Address bus.” Dictionary, Merriam-Webster, Accessed 28 Oct. 2020.

Comments on address bus

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


Test Your Vocabulary

Namesakes Word Quiz

  • a citrus fruit possibly named after a person
  • Which of the following is a fruit named after a Moroccan seaport?
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

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

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!