Sinoatrial node. The sinoatrial node (SAN; also known as sinus node) is a group of cells located in the wall of the right atrium of the heart.
How Do Web Browsers Work? The World Wide Web is a system of Internet servers that support specially formatted documents. Web browsers are used to make it easy to access the World Wide Web. Browsers are able to display Web pages largely in part to an underlying Web protocol called HyperText Transfer Protocol (HTTP).
The major web browsers are Internet Explorer, Firefox, Google Chrome, Safari, and Opera. A browser is a software application that provides users with a way to view and interact with information on the Internet. 5 Browsers which is mostly used by the peoples are: 1. Google Chrome 2. Internet Explorer 3. Mozilla Firefox 4. Opera 5.