In today's market, the two most popular are Netscape Navigator and Internet Explorer. They perform the same function, but are made by different manufacturers. The browser knows what page to look for by looking at the address bar. The address bar is the method of choice if you know what internet address you would like to pull up. That's where the search engine comes into play.
Search engines allow web users to search cataloged indexes of web pages by subject content.
There are two types of searches, some for topical searches and some for full text searches. Another type of search is a full text search, which searches for the entire web page for matching items. Say you're looking for information on Frank Lloyd Wright. This is where you type what you are looking for. You may have already discovered this answer upon arriving at this web page.