Index register

Rarity: Common

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At a glance

Class

Notion

Domain

Science and technology

In collections

Nobody has pulled it yet.

What Wikipedia says

An index register in a computer's CPU is a processor register (or an assigned memory location) used for pointing to operand addresses during the run of a program. It is useful for stepping through strings and arrays. It can also be used for holding loop iterations and counters.

Excerpt from the Wikipedia article “Index register”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: ArnoldReinhold, CC BY-SA 3.0, via Wikimedia Commons.