A BROWSER is software that is used to access the Internet. A browser lets you visit websites and do activities within them like login, view multimedia, link from one site to another, visit one page to another, print, send and receive email, among many other activities. The most common browser software titles on the market are: Microsoft Internet Explorer, Google’s Chrome, Mozilla Firefox, Apple Computer’s Safari, and Opera. Browser availability depends on the operating system your computer is using (for example: Microsoft Windows, Linux, Ubuntu, Mac OS, among others).What does my browser do?
When you type a web page address such as www.computer.resources.gy into your browser, that web page in its entirety is not actually stored on a server, ready and waiting to be delivered. In fact, each web page that you request is individually created in response to your request.

You are actually calling up a list of requests to get content from various resource directories or servers on which the content for that page is stored. It is rather like a recipe for a cake; you have a shopping list of ingredients (requests for content) that when combined in the correct order bakes a cake (the web page).The page maybe made up from content from different sources. Images may come from one server, text content from another, scripts such as date scripts from another and ads from another. As soon as you move to another page, the page that you have just viewed disappears. This is the dynamic nature of websites.
Below, is a list of popular Browsers used in today’s world.

Internet Explorer (formerly Microsoft Internet Explorer and Windows Internet Explorer, commonly abbreviated IE or MSIE) is a series of graphicalweb browsers developed by Microsoft and included as part of the Microsoft Windows line of operating systems, starting in 1995. It was first released as part of the add-on package Plus! for Windows 95 that year. Later versions were available as free downloads, or in service packs, and included in the OEM service releases of Windows 95 and later versions of Windows.

Mozilla Firefox is a free and open-sourceweb browser developed for Windows, OS X, and Linux, with a mobile version for Android, by the Mozilla Foundation and its subsidiary, the Mozilla Corporation. Firefox uses the Geckolayout engine to render web pages, which implements current and anticipated web standards.
As of July 2013, Firefox has between 16% and 21% of worldwide usage, making it the third most popular web browser, according to different sources. According to Mozilla, Firefox counts over 450 million users around the world.
Google Chrome is a freewareweb browser developed by Google. It used the WebKitlayout engine until version 27 and, with the exception of its iOS releases, from version 28 and beyond uses the WebKitforkBlink. It was first released as a beta version for Microsoft Windows on September 2, 2008, and as a stable public release on December 11, 2008.
Safari is a web browser developed by Apple Inc. and included with the OS X and iOS operating systems. First released as a public beta on January 7, 2003 on the company’s OS X operating system, it became Apple’s default browser beginning with Mac OS X v10.3 “Panther”. Safari is also a native browser for iOS.
A version of Safari for the Microsoft Windows operating system was first released on June 11, 2007, and supported Windows XP Service Pack 2, or later but it has been discontinued. Safari 5.1.7, released on May 9, 2012, is the last version available for Windows.
According to Net Applications, Safari accounted for 62.17 percent of mobile web browsing traffic and 5.43 percent of desktop traffic in October 2011, giving a combined market share of 8.72 percent.
Opera is a web browser developed by Opera Software. The latest versions of Opera use the Blink layout engine. Earlier versions used Opera Software’s proprietary Presto layout engine and had additional Internet suite features such as sending and receiving e-mail messages, managing contacts, chatting on IRC, downloading files via BitTorrent, and reading web feeds. Opera is offered free of charge for personal computers and mobile devices. According to Opera Software, the browser has over 300 million monthly users worldwide.
Opera is the third most popularmobile web browser in November 2013. Opera Mini has been chosen as the default integrated web browser in several mobile handsets by their respective manufacturers.
Features include tabbed browsing, page zooming, mouse gestures, and an integrated download manager. Its security features include built-in phishing and malware protection and the ability to delete private data such as HTTP cookies. Opera has been noted for originating many features later adopted by other web browsers, a prominent example being Speed Dial.
Opera runs on a variety of personal computer operating systems, including Microsoft Windows, OS X, Linux, and FreeBSD. Opera editions are available for devices running the Android, iOS, Symbian, Maemo, Bada, BlackBerry and Windows Mobile operating systems, and Java ME. Approximately 120 million mobile phones have been shipped with Opera.Opera is the only commercial web browser available for the Nintendo DS, DSi and Wii gaming systems. Some television set-top boxes as well as TV-set use Opera to render HTML-based interactive content. Adobe Systems has licensed Opera technology for use in the Adobe Creative Suite
SeaMonkey
Another project from the Mozilla Foundation, Sea-monkey is the product formerly known as the Mozilla Application suite. The web browser is at the core, but it also offers an email client, IRC chat, and HTML editing.
Browsers are capable of a lot more than just viewing Web pages and they are not restricted to your computer – browsers can be used by TV and mobile phones. You can customize them to your preference (like setting text sizes), choose what type of information they do (or do not) display and you can even use them to send e-mail.
Today, web browsers are installed on almost all computers. Because web browsers are used so frequently, it is vital to configure them securely. Often, the web browser that comes with an operating system is not set up in a secure default configuration. Not securing your web browser can lead quickly to a variety of computer problems caused by anything from spyware being installed without your knowledge to intruders taking control of your computer.