Our BetterMost Community > Chez Tremblay
Something I've never seen before
Kelda:
From http://computer.howstuffworks.com/search-engine1.htm
--- Quote ---Web Crawling
When most people talk about Internet search engines, they really mean World Wide Web search engines. Before the Web became the most visible part of the Internet, there were already search engines in place to help people find information on the Net. Programs with names like "gopher" and "Archie" kept indexes of files stored on servers connected to the Internet, and dramatically reduced the amount of time required to find programs and documents. In the late 1980s, getting serious value from the Internet meant knowing how to use gopher, Archie, Veronica and the rest.
Today, most Internet users limit their searches to the Web, so we'll limit this article to search engines that focus on the contents of Web pages.
Before a search engine can tell you where a file or document is, it must be found. To find information on the hundreds of millions of Web pages that exist, a search engine employs special software robots, called spiders, to build lists of the words found on Web sites. When a spider is building its lists, the process is called Web crawling. (There are some disadvantages to calling part of the Internet the World Wide Web -- a large set of arachnid-centric names for tools is one of them.) In order to build and maintain a useful list of words, a search engine's spiders have to look at a lot of pages.
How does any spider start its travels over the Web? The usual starting points are lists of heavily used servers and very popular pages. The spider will begin with a popular site, indexing the words on its pages and following every link found within the site. In this way, the spidering system quickly begins to travel, spreading out across the most widely used portions of the Web.
--- End quote ---
Jeff Wrangler:
There were programs called Archie and Veronica? :laugh:
Kelda:
--- Quote from: Jeff Wrangler on January 22, 2010, 04:22:15 pm ---There were programs called Archie and Veronica? :laugh:
--- End quote ---
seems so!!! :D
Front-Ranger:
Oh yes, computer geeks have always had a flair for naming things!
Katie77:
Well, Jeff, I guess becasue I am on the other side of the world in a different time zone, many many times I come on here and I am here on my lonesome.......
So, while you are all asleep over there, I just want you to know, I am keeping an eye on things on here...
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