What is read-only memory (ROM)? - Definition from WhatIs.com

Definition

read-only memory (ROM)

Part of the Computing fundamentals glossary:

ROM is "built-in" computer memory containing data that normally can only be read, not written to. ROM contains the programming that allows your computer to be "booted up" or regenerated each time you turn it on. Unlike a computer's random access memory (RAM), the data in ROM is not lost when the computer power is turned off. The ROM is sustained by a small long-life battery in your computer.

If you ever do the hardware setup procedure with your computer, you effectively will be writing to ROM.

This was last updated in April 2005
Posted by: Margaret Rouse

Related Terms

Definitions

  • virtual reality

    - Virtual reality is an artificial environment that is created with software and presented to the user in such a way that the user suspends belief and accepts it as a real environment. (WhatIs.com)

  • implementation

    - Implementation is the execution of any idea, model, or method; in IT, it refers to the process of setting up new software or hardware after a purchase is made. (SearchCRM.com)

  • terabyte (TB)

    - A terabyte (TB) is a measurement of computer storage capacity that is equal to 1,024 gigabytes (GB). The value is sometimes rounded to 1,000 GB. (SearchStorage.com)

Glossaries

  • Computing fundamentals

    - Terms related to computer fundamentals, including computer hardware definitions and words and phrases about software, operating systems, peripherals and troubleshooting.

  • Internet applications

    - This WhatIs.com glossary contains terms related to Internet applications, including definitions about Software as a Service (SaaS) delivery models and words and phrases about web sites, e-commerce ...

Ask a Question About read-only memory (ROM)Powered by ITKnowledgeExchange.com

Get answers from your peers on your most technical challenges

Tech TalkComment

Share
Comments

    Results

    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.