Browser- a browser is a piece of software that runs on your pc. Examples are internet explorer, netscape, opera and firefox. The browser allows you, via a connection to the internet via your internet service provider, to access web pages stored on computers (servers) that are connected to the internet. Asearch engine is a piece of application software that sits on a powerful computer (a server) on the internet. This computer stores information about where web pages are stored on the internet.