How Does a Web Browser Function?

Basics

A web browser is a software program that is usually available for free downloading by users. It allows them to view content via the web in its graphic form rather than HTML code, the primary language used by a website's designers to place the varying elements of a website. For users, this means that navigation can occur by means of simple clicks rather than having to input commands.

Uniform Resource Identifier

In order for a web browser to function, the uniform resource identifier (URI) must be known by the user. The URI is a serious of characters that are used to name the resource found online. The URI is used as the address of the website and usually begins with http: This particular prefix functions as a way of identifying the content as a part of hypertext transfer protocol. For local files, the URI can appear as a file. In order to avoid confusion, only one particular location can be assigned to a specific URI.

Elements

Web browsers can handle more than just web pages written in HTML code. Most web browsers can also process images, sound, and video and have plug-ins which allow Flash and Java applets. In the event that the browser stumbles upon a file for download that it cannot be understood, the file or download can be saved on a disk instead.

Components

When a web browser is activated, a preset web page known as the "Start" or "Home" page appears. Usually, it is the Internet service provider that provides the default home page. However, it can easily be changed to suit the preferences of the user. The toolbar of the web browser is found on top and allows for easier navigation. Although web browsers have different tools, common functions include the back, forward, and home buttons.

Security

Information can easily be intercepted by outsiders if it is not scrambled or encrypted. To improve security, most web browsers already have built in features in case there is a breach. For example, security alerts are messages that inform the user of potential harm when entering a website. Such security also safeguards against phishing, or the act of trying to get personal or financial information using e-mail. In these situations, the web browser checks the website sending the message for any previous problems. The security settings of the web can be changed by going into the Internet options under the "Tools" section in the toolbar. It is here that the list of features can be activated or deactivated according to the preferences of the user.

Resources

• Web Browser
• Web Browser Tutorials
• Web Browser Functions