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Frequently Used Net Related Terms

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DNS

Domain Name System
A database system that translates an IP address into a domain name. For example, a numeric IP address like 207.219.116.4 is converted into netlingo.com. The DNS is a static, hierarchical name service and it uses TCP/IP hosts, and is housed on a number of servers on the Internet. Basically, it maintains this database for figuring out and finding (or resolving) host names and IP addresses. This allows users to specify remote computers by host names rather than numerical IP addresses.

Fuzzy logic
A type of logic that recognizes more than simple true and false values. With fuzzy logic, propositions can be represented with degrees of truthfulness and falsehood. For example, the statement, today is sunny, might be 100% true if there are no clouds, 80% true if there are a few clouds, 50% true if it's hazy and 0% true if it rains all day. Fuzzy logic has proved to be particularly useful in expert system and other artificial intelligence applications. It is also used in some spell checkers to suggest a list of probable words to replace a misspelled one. Fuzzy logic is a superset of conventional (Boolean) logic that has been extended to handle the concept of partial truth -- truth values between "completely true" and "completely false". It was introduced by Dr. Lotfi Zadeh of UC/Berkeley in the 1960's as a means to model the uncertainty of natural language. Zadeh says that rather than regarding fuzzy theory as a single theory, we should regard the process of ``fuzzification'' as a methodology to generalize ANY specific theory from a crisp (discrete) to a continuous (fuzzy) form. Thus recently researchers have also introduced "fuzzy calculus", "fuzzy differential equations", and so on.

Ethernet

A widespread networking scheme rated at 10 Mbs (megabits per second). It is most commonly known as "the hardware device in the office that is the LAN."

DSL

Digital Subscriber Line
DSL is a technology that uses existing copper wiring found in almost every home and office to provide a fast connection to the Internet. Special hardware is attached to both ends of the line to allow data to transmit over the wires at a far greater speed than the standard phone wiring. It also provides a constant connection to the Internet 24 hours a day, 7 days a week, meaning there is no need to dial-in to your ISP each time you want to get online. A DSL line is most convenient in that you only need one line to carry both voice and data signals (meaning you don't have to get a second phone line).
DSL is similar to ISDN in that they both operate over existing copper telephone lines (POTS) and both require short runs to a central telephone office. (DSL is not yet available in many areas because of the distance from a central office or because the local telephone companies have not yet introduced this product.) DSL provides much higher speeds, however, because connection speeds vary, many people prefer the fixed speed of an ISDN (or a T1 for that matter). Connection speeds for DSL typically range from 1.544 Mbps to 512 Kbps downstream and around 128 Kbps upstream. xDSL refers to the family of digital subscriber line technologies, such as ADSL (Asymmetric Digital Subscriber Line), SDSL (Symmetrical Digital Subscriber Line), HDSL (High bit-rate Digital Subscriber Line), and RADSL (Rate Adaptive Digital Subscriber Line).

Dial-up connection
The most popular form of Internet connection for a home user, this is a connection from your desktop computer to the host/server computer over standard telephone lines.

Data warehousing
A generic term used for a system for storing, retrieving and managing large amounts of any type of data. Data warehouse software often includes sophisticated compression and hashing techniques for fast searches, as well as advanced filtering. Planners and researchers can use this database freely without worrying about slowing down day-to-day operations of the production database.

Cornea gumbo
A visually noisy, over-designed, Photoshopped mess. As in "Gawd, weíve got to redesign that page, itís become total cornea gumbo."

Commerce server

A server that allows the ability for online transactions to take place via a secured socket layer (SSL) and a credit card. Blamestorming
A term used in the modern workplace to describe "sitting around in a group discussing why a deadline was missed or a project failed and who is responsible."

The Computer Network

A company that has several popular Web sites, television programs, and a radio station about the Internet. Their Web sites include: cnet.com, shareware.com, download.com, news.com, search.com, computers.com, and others. Their TV shows are: CNET Central, the web, the new edge, and TV.com. CNET was the first company to integrate interactive technology with television and itís early adoption of a yellow side-bar to navigate became a standard many Web sites

ATM
Asynchronous Transfer Mode
A high speed networking scheme and communication protocol designed with the transfer of multimedia data in mind. NOTE: You can't get $20 bills from this ATM.

Connectivity
A computer buzzword that refers to a program or device's ability to link with other programs and devices. For example, a program that can import data from a wide variety of other programs and can export data in many different formats is said to have good connectivity. On the other hand, computers that have difficulty linking into a network (many laptop computers, for example) have poor connectivity.
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