It looks like others have explained the difference between Google (a search engine) and Google Chrome (a web browser from the company behind that search engine).
Among the 'regulars' here in AB's Technology section, the vast majority (wisely, in my opinion) won't touch Internet Explorer with any number of bargepoles, which means that they've sought out an alternative. Chrome is quite popular but I find it far less intuitive to use than Firefox, which seems to be the most popular browser around here (and which I love). Why not give it a go? (You can have as many browsers as you like on your computer, without any risk of conflicts, so there's nothing to lose):
http://www.mozilla.org/en-US/firefox/all/