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).
Change Your Default Search Engine In Internet Explorer. Internet Explorer is the world's most popular Web browser. Security, ease of use, and improvements in RSS, CSS, and Ajax support are Microsoft's priorities for Internet Explorer. This version of IE runs on the 32-bit version of Windows 7. The latest version of the browser includes support for: