What is femtosecond? - Definition from WhatIs.com
Part of the Computing fundamentals glossary:

(This definition follows U.S. usage in which a billion is a thousand million and a trillion is a 1 followed by 12 zeros.)

A femtosecond is one millionth of a nanosecond or 10 -15 of a second and is a measurement sometimes used in laser technology.

For comparison, a millisecond (ms or msec) is one thousandth of a second and is commonly used in measuring the time to read to or write from a hard disk or a CD-ROM player or to measure packet travel time on the Internet.

A microsecond (µs) is one millionth (10 -6 ) of a second.

A nanosecond (ns or nsec) is one billionth (10 -9 ) of a second and is a common measurement of read or write access time to random access memory ( RAM ).

A picosecond is one trillionth (10 -12 ) of a second, or one millionth of a microsecond.

An attosecond is one quintillionth (10 -18 ) of a second and is a term used in photon research.

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

Related Terms

Definitions

  • intelligent system

    - An intelligent system is a machine with an embedded, Internet-connected computer that has the capacity to gather and analyze data and communicate with other systems.  (WhatIs.com)

  • technological convergence

    - When different systems or procedures come together into one device or form factor, it's known as technology convergence. (searchConvergedIT.com)

  • flash storage

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