Internet Terminology


Internet Service Providers are companies like RCN, Service Electric, and Verizon that provide access to the Internet for your computer. The service provider charges you a fee in return for a software package, username and password that allows you to connect to the Internet. Verizon will enable you to connect with DSL over your current phone line with a modem.
Internet Service Providers



Cache
Pronounced cash, a special high-speed storage mechanism. It can be either a reserved section of main memory or an independent high-speed storage device.

CERN
European Particle Physics Laboratory, the developers of the World Wide Web.

CGI (Common Gateway Interface)
The scripting language used to write gateway scripts for CERN and NCSA web servers. CGI programs are the most common way for web servers to interact dynamically with users. Many HTML pages that contain forms, for example, use a CGI program to process the form's data once it's submitted.



Chat
Real-time communication between two users via computer. Once a chat has been initiated, either user can enter text by typing on the keyboard and the entered text will appear on the other user's monitor.

Cisco
One of the leading manufacturers of network equipment. Cisco's primary business is in Internet working products, such as routers, bridges, and switches.

Click-through Rate
In web advertising, the click through rate is the number of clicks on an advertisement (such as a banner ad) is expressed as a percentage of the number of times that the page where the ad appears was downloaded. Thus, the click through rate would be 10% if one in ten people who viewed the advertisement clicked on it, and landed on the advertisers' site.

Client / Server Architecture
A network architecture in which each computer or process on the network is either a client or a server. Servers are powerful computers dedicated to managing disk drives (file servers), printers (print servers), or network traffic (network servers). Clients are PCs or workstations on which users run applications. Clients rely on servers for resources, such as files, devices, and even processing power.

Cloud computing
Cloud computing simply is tasks and data that are kept on the Internet rather than on individual devices and still provide on-demand access. Mobile cloud computing involves other mobile devices and or servers accessed via the Internet.



CNAME
is short for canonical name. The CNAME record is a record in a DNS database that indicates the true, or canonical host name of a computer.Aliases are associated with host computers. Every computer that hosts a website must have an IP address in order to be connected to the Internet. The DNS resolves the computer domain name to its IP address. Occasionally more than one domain name points to the same IP address and that is when the CNAME becomes useful. A machine can have an unlimited number of CNAME aliases, but a separate CNAME record must be in the database for each alias.

Connectivity
A computer buzzword that refers to a program or device's ability to link with other programs and devices.

Cookies
A message given to a web browser by a web server. The browser stores the message in a text file called cookie.txt. The message is then sent back to the server each time the browser requests a page from the server.

Coordinates
Pairs of numbers used to define the edges of the clickable areas in clickable image maps.

CPU
is short for central processing unit. The CPU is the brain center of the computer and is sometimes referred to simply as the central processor. The CPU is where most calculations take place and the most important element of a computer system. CPUs require one or more printed circuit boards. In personal computers and small workstations, the CPU is usually housed in a single chip called a microprocessor.

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