What is shift register? - Definition from WhatIs.com
Part of the Electronics glossary:

A shift register is a digital memory circuit found in calculators, computers, and data-processing systems. Bits (binary digits) enter the shift register at one end and emerge from the other end. The two ends are called left and right. Flip flops, also known as bistable gates, store and process the data.

In its most basic form, the shift register is a bidirectional FIFO (first-in first-out) circuit. When a bit is input on the left, all the bits in the register move one place to the right, and the rightmost bit disappears. When a bit is input on the right, all the bits move one place to the left, and the leftmost bit disappears.

Shift registers are commonly used in converters that translate parallel data to serial data, or vice-versa. Shift registers can also function as delay circuits and digital pulse extenders.

This was last updated in August 2012
Contributor(s): Stan Gibilisco
Posted by: Margaret Rouse

Related Terms

Definitions

  • bioprinting

    - Although bioprinting is still in the experimental stage and is currently used primarily in scientific study rather than applied science, the possibility of creating functional replacement tissues o... (WhatIs.com)

  • flash storage

    - Flash storage, based on flash memory, is used for data repositories, storage systems and consumer devices, such as USB drives, smartphones and solid-state drives. Flash-based storage is faster than... (WhatIs.com)

  • digital assistant

    - A digital assistant is an application program that can understand natural human language and complete electronic tasks for the end user. (WhatIs.com)

Glossaries

  • Electronics

    - Terms related to electronics, including definitions about electrical components and words and phrases about computers, laptops parts, digital cameras, televisions and home appliances.

  • 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. Find an Answer.Powered by ITKnowledgeExchange.com

Ask An IT Question

Get answers from your peers on your most technical challenges

Ask Question

Tech TalkComment

Share
Comments

    Results

    Contribute to the conversation

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