Opera, developed by Opera Software, is a web browser and Internet suite. It handles tasks related to internet such as displaying websites, sending and receiving e-mail (electronic mail) messages, managing contacts, chatting on IRC, downloading files via BitTorrent (a software), and reading web feeds.The features of Opera include:
• tabbed browsing
• page zooming
• mouse gestures
• an integrated download manager.
• built-in phishing and malware protection
• strong encryption when browsing secure websites
• the ability to easily delete private data such as HTTP cookies
Opera supports multiple Operating System, which includes:
• Microsoft Windows
• Mac OS X
• Linux
• FreeBSD
• Solaris
Opera has captured only a small fraction of the browser market of worldwide personal computer. It does, though, have a stronger market share on mobile devices such as smartphones, mobile phones, and personal digital assistants. Opera Editions are available for devices using the Maemo, BlackBerry, Symbian, Android, Windows Mobile, and iPhone operating systems and also for Java ME-enabled devices. About 120 million cell phones have been shipped with Opera.
Opera was designed with a goal to computer accessibility for users who have visual or motor impairments. It is possible to control nearly every aspect of the browser by the use of keyboard and the default keyboard shortcuts can be modified to suit the user. It is the only major browser that includes support for spatial navigation and Opera also includes support for mouse gestures (patterns of mouse movement that trigger browser actions such as "back" or “forward” or "refresh"). Voice control (co-developed with IBM) allows control of the browser without the use of a keyboard or mouse and it can also read aloud pages and marked text.