Transcript
’
“”
’
’
Links to a site
’
Directory’s searchable
index
Internet
Directory’s Server
VISITS
PRODUCES
SEARCHES
RECEIVES
Directory Employee
EVALUATES
ADDS and “CATALOGS”
Directory’s browsable categories
BROWSES
How does a directory work?
User
Search engine’s database
index
Spider or Robot
Every word on the page
or some words on the
page
Finds new pages or changed
information on a page
Internet
Search Engine’s Server
LAUNCHES
VISITS
CRAWLS
LOCATES
RETURNS
PRODUCES
SEARCHES
RECEIVES
How does a search engine work?
User