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).
There Are 7 Key Components of Any Web Browser. 1. Layout Engine â this takes input from the browser (URL bar, search box, mouse clicks and key presses) and passes them to the rendering engine. 2. Rendering Engine â this takes HTML code and interprets it into what you see visually.