A hit is a single file request in the access log of a Web server. A request for an HTML page with three graphic images will result in four hits in the log: one for the HTML text file and one for each of the graphic image files. While a hit is a meaningful measure of how much traffic a server handles, it can be a misleading indicator of how many pages are being looked at. Instead, advertising agencies and their clients look at the number of pages delivered and ad impression s or views.

IMPRESSIONS:In web advertising, the term impression is sometimes used as a synonym for view , as in ad view . Online publishers offer and their customers buy advertising measured in terms of ad views or impressions. Since a single Web page can contain multiple ads (depending on its design), a site usually registers more ad views per unit of time than Web pages per unit of time. ( Hits is the term for any requested file, including each of a page's images. Although hits are of interest for traffic measurement purposes, they have no significance for advertisers.)

HTML (Hypertext Markup Language) is the set of markup symbols or codes inserted in a file intended for display on a World Wide Web browser page. The markup tells the Web browser how to display a Web page's words and images for the user. Each individual markup code is referred to as an element (but many people also refer to it as a tag ). Some elements come in pairs that indicate when some display effect is to begin and when it is to end.

META TAG: is a tag (that is, a coding statement) in the Hypertext Markup Language ( HTML ) that describes some aspect of the contents of a Web page . The information that you provide in a meta tag is used by search engine s to index a page so that someone searching for the kind of information the page contains will be able to find it. The meta tag is placed near the top of the HTML in a Web page as part of the heading. NOTE: because meta tags have been abused, many of the top search engines no longer give much importance to them.

ISP (Internet service provider) is a company that provides individuals and other companies access to the Internet and other related services such as Web site building and virtual hosting . An ISP has the equipment and the telecommunication line access required to have a point-of-presence on the Internet for the geographic area served. The larger ISPs have their own high-speed leased lines so that they are less dependent on the telecommunication providers and can provide better service to their customers.

RAM (random access memory) is the place in a computer where the operating system , application programs, and data in current use are kept so that they can be quickly reached by the computer's processor . RAM is much faster to read from and write to than the other kinds of storage in a computer, the hard disk, floppy disk, and CD-ROM. However, the data in RAM stays there only as long as your computer is running. When you turn the computer off, RAM loses its data. When you turn your computer on again, your operating system and other files are once again loaded into RAM, usually from your hard disk .

ROM is "built-in" computer memory containing data that normally can only be read, not written to. ROM contains the programming that allows your computer to be "booted up" or regenerated each time you turn it on. Unlike a computer's random access memory ( RAM ), the data in ROM is not lost when the computer power is turned off. The ROM is sustained by a small long-life battery in your computer.
If you ever do the hardware setup procedure with your computer, you effectively will be writing to ROM.

GEEK: a person who is inordinately dedicated to and involved with technology to the point of sometimes not appearing to be normal. Being a geek also implies a capability with the technology. Although historically, computer and Internet programming and hacking has been a male thing, there are now many "girl geeks." The term "hacker" generally connotes competence more strongly than "geek" does. The term "geek" emphasizes dedication and weirdness, although recent use of the term suggests greater social acceptance and tolerance for geeks. (Historically, a geek was a circus person whose role in the side-show was to bite off chicken's heads or perform other bizarre feats. Eric Raymond describes "computer geek" as "one who eats (computer) bugs for a living.")