Summary for search engines

Student name: ahmed abudayya

Before the advent of the web there were search engines for old systems or protocols, such as a search engine for

sites Erkki Archie PCC anonymous FTP and search engine eroniqa Veronica Gopher

Protocol Gopher.

If we know that the presence of pre-Web and Web search engines exist, the question that jumps to

mind is: what was happening before that there are these

engines ?How can the user find what he

wants ?

Probably will not today imagine how hard it is at the time; he was a

researcher needs to know the exact address for the page you want. Any of what we know

today as 'URLThe URL is a mixture of a fixed sequence of

addresses, names, file types, some mandatory and others optional

During the two years of the emergence of Gopher form the developer, web servers, the

giant began to appear, which allow the use of hyperlinks and text search

chart review. The first Web search engine is the Wandex ,based on an index compiled Rover Web World

Wide Web Wanderer, a creepy spider web crawler was developed at the Massachusetts

Institute of Technology MIT in 1993

This roaming is the first application of robotics programs, which are programs that

are specific functions are no hard and fast frequent human beings is impossible to do,

you can imagine its work by imagining an army of intelligent robots are sorting out and

call the millions of millions of objects in the parts of a second.

Also appeared very early in 1993, another search engine is Aljub Aliweb, is still in force

today

The first is based on a search engine crawler Spider to the full text and Bakrowler was

WebCrawler, which came into existence in 1994, from the University of Washington. In

contrast to his predecessors.,

have left users searching for any word on any web page, not only the titles of pages and

sites, which became the basis of all the major search engines since that time. Bakrowler

was also the first search engine known to the public on a large scale. also came to Lycos

Lycos( which started at Carnegie Mellon Carneigie

Mellon University )and became a big commercial project

Shortly thereafter, he appeared many search engines and competed on the boom. Among

these were the Excite Excite, Inphusik Infoseek, Inktomi Inktomi, Northern Light

Northern Light, and Oltaڤista Alta Vista. In

some cases competed with popular directories such as Yahoo, Yahoo.

Subsequently, the technology incorporated into the evidence with a search engine for

greater performance of functions