analog LastModified: 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.
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: Swell  26.00Analog By Land or Sea Tee. Get there in style even if by hooptie. Analog t-shirt features front and back distressed screens. Slim fit, 100% cotton. A... eBay  12.99ANALOG BY BURTON SNOWBOARDS HAND T-SHIRT NEW MENS M ******** ALL USA ORDERS RECEIVED AND PAID FOR BY DEC 21ST ARE GUARANTEED TO ARRIVE BY X-MAS ******... Amazon Marketplace  19.99 eBay  15.00Gear Swap: More Photos! not your typical snowboard shop | shipping |payment options |cheaper shipping? | auctions | feedback | about us | contact us |... Evogear.com  21.90Analog Werken Cargo Short – Analog’s Werken is a clean lined cargo short that is wearable everyday all summer long. Large storage space means you ... Compare all matches: 22956 Store Offers