SEARCH
 
FREE NEWSLETTER
Sign up for a Free WebVideoUniverse HTML newsletter.

Become a Marketplace Partner



IT Channel
internet.com
internet.commerce

Search for more Web Video terms...
 
analog
Last modified: Tuesday, May 25, 2004 

(adj.) Also spelled analogue, describes a device or system that represents changing values as continuously variable physical quantities. A typical analog device is a clock in which the hands move continuously around the face. Such a clock is capable of indicating every possible time of day. In contrast, a digital clock is capable of representing only a finite number of times (every tenth of a second, for example). In general, humans experience the world analogically. Vision, for example, is an analog experience because we perceive infinitely smooth gradations of shapes and colors.

When used in reference to data storage and transmission, analog format is that in which information is transmitted by modulating a continuous transmission signal, such as amplifying a signal's strength or varying its frequency to add or take away data. For example, telephones take sound vibrations and turn them into electrical vibrations of the same shape before they are transmitted over traditional telephone lines. Radio wave transmissions work in the same way. Computers, which handle data in digital form, require modems to turn signals from digital to analog before transmitting those signals over communication lines such as telephone lines that carry only analog signals. The signals are turned back into digital form (demodulated) at the receiving end so that the computer can process the data in its digital format.

Contrast with digital.

Sponsored listings

Analog Pressure Gauges - Looking for Analog Pressure Gauges? Click to see listings and compare offers online from providers in your area.

  Related Links

National Semiconductor home page
This home page offers links to company and product information, design engineer resources, news articles, information on environmental health and safety, and an annual report.

Yahoo!'s analog circuits page
Yahoo!'s directory of analog circuits.

Yahoo!'s analog integrated circuits page
Yahoo!'s directory of analog integrated circuits.

Related Categories

Communications

Data

Related Terms

digital

modem

Nyquist's Law

transducer

analog Products :


Top Store Offers:
eBay  13.99Untitled Document Old School/Audio T Shirt Military Green Tee/White print Size : Extra Large (XL) New - 100% Pre-Shrunk Cotton Silk-screened Tee of an...
Tilly's  53.99Analog Combat Sushi boardshorts. Tie waist with Analog logos on grommets and on aglets. Zip fly. Allover sushi and sashimi screen prints. Analog appli...
CCS  49.99100% poly twill boardshorts. Analog's signature sublimated sushi allover print. Anti-rash front rise. Cargo pocket at right side. Analog embroidered p...
eBay  24.99New Analog Scalawag Premium Belt Brown Leather Size Large/Xlarge click picture to enlarge New Analog Scalawag Premium Brown Belt . Size Large to XLarg...
Evogear.com  49.95Analog Censor Walkshort: With a streamlined chino fit, 22” outseam and mad-rad-plaid styling, Analog’s Censor Walkshort will knock your socks off....

Compare all matches:
13383 Store Offers


The Network for Technology Professionals

Search:

About Internet.com

Legal Notices, Licensing, Permissions, Privacy Policy.
Advertise | Newsletters | E-mail Offers