3: Searching the Web Flashcards
banner ad
Advertising that appears in a box on a Web page, usually at the top, but sometimes along the side or at the bottom of the page and usually includes graphical elements including to the text in the ad. WEB 143, WEB 468
Boolean algebra
A branch of mathematics and logic in which all values are reduced to one of two values; in most practical applications of Boolean algebra, these two values are true and false. WEB 160
Boolean operator
In Boolean algebra, an operator that specifies the logical relationship between the elements it joins, just as the plus sign arithmetic operator specifies the mathematical relationship between the two elements it joins. Most search engines recognize three basic Boolean operators: AND, OR, and NOT. Also called logical operator. WEB 160, WEB 161–162
dead link
A hyperlink to a Web page that no longer exists or has been moved to another URL. WEB 143
deep Web
Information contained in the databases that some Web sites use to generate their dynamic Web pages. WEB 169–170
dynamic Web page
A Web page created on the fly in response to a user’s query from information stored in a database maintained by the Web site. WEB 169
exploratory question
An open-ended question that can be difficult to phrase and for which it can be difficult to determine when you find a good answer. WEB 134
full text indexing
A method used by some search engines for creating their databases in which the entire content of included Web pages is stored in the database. WEB 146
hit
A Web page that is indexed in a search engine’s database and contains text that matches the search expression entered into the search engine. Search engines provide hyperlinks to hits on results pages. WEB 143
hybrid search engine directory
A Web site that combines the functions of a Web search engine and a Web directory. WEB 150
inbound link
Connection to a Web page formed by other Web pages’ hyperlinks pointing to it. WEB 146
Inbox
The folder in which email messages received from the mail server are stored. WEB 146
link rot
A term that defines Web pages or sites that have a number of dead links. WEB 143
location operator
A Web search engine operator that lets you search for terms that appear close to each other in the text of a Web page. The most common is the NEAR operator. Also called proximity operator. WEB 162
meta tag
An HTML element that a Web page creator places in a Web page header to inform Web robots about the page’s content. WEB 145