What is OPERA software?

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Opera was originally a web browser made by Norwegian Opera software ASA, which supported multi-page tabbed browsing. Opera is officially defined as a network suite because the new version of Opera adds a lot of network functions. At present, the latest official stable version for personal computers is 9.23.

Opera supports many operating systems, such as Windows, Linux, Mac, FreeBSD, Solaris, BeOS, OS/2, QNX, etc. In addition, Opera has a mobile version. In 2006, it signed a contract with Nintendo to provide opera browser software for NDS and Wii. It also supports multiple languages, including simplified Chinese and traditional Chinese.

Opera also provides many convenient functions, including wand password management, session management, mouse gestures, keyboard shortcuts, built-in search engine, intelligent pop-up advertisement interception, website filtering, browser recognition camouflage and more than 400 kinds of skins that can be easily downloaded and replaced. The interface can also be changed at will by dragging and dropping the custom mode. After downloading an extension of 10M, it can even let you control and read web pages by voice (English). The above, including the right-click menu, can be customized by the user.

Opera supports various security protocols including SSL 2/3 and TLS, supports 256-bit encryption, and can resist network attacks such as malicious code attacks and phishing attacks. And its web page rendering speed is also the fastest today. It supports W3C standard, and it also allows experienced users to control the structure and font of browsing web pages in author mode and user mode.

Software history

Around Opera Logo 1992, Jon Stephenson von Tetzchner (the son of Professor Stephen von Tetzchner, who is a top expert in the field of communication) and Geir Ivaroseyworked in the research group of Televerket Company. This company was owned by Norway at that time and was the largest telecommunications company in Norway. Headquartered in Funib near Oslo. Now this telecom company is called Telenor.

The team mentioned above is developing ODA, a standards-based file storage repair system. Although the system is efficient, it disappeared without being widely used. The research team also developed the first server program and established the home page at 1993. Then they decided to develop a new browser because they thought the structure that Mosaic (the earliest browser) could achieve was too monotonous. Inspired by the ODA project, they foresaw the potential of multi-structure web browsers, and their parent company gave them the green light. 1993 In the second half of the year, this browser project has started running.

At that time, the Norwegian government decided to reduce government intervention in the economy after 1998, which meant that many local and foreign telecom companies would have a scuffle in the Norwegian communication market. Televerket is facing a competitive challenge, and the company is not sure whether this browser project is suitable for its main business.

1994, Televerket became a state-owned holding company, and the teams of J.S.von Tetzchner and G. Ivaroseywas were allowed to continue to develop browsers in Televerket's office.

At the end of 1995, Televerket was renamed Telenor, and Opera software was established, but it still works in the original office. Their product was called MultiTorg Opera (Opera used this name before version 2.0, but these versions were never released to the public), and soon became famous for its excellent multi-page browsing features, shortcut bars and toolbar settings.

1996, Opera version 2. 1 Windows is published online.

1997, the first version of Opera, Opera 2. 1 Windows was officially released.

1998, Opera 3.0 was released, and multi-system support of software began.

1999, Opera developed the mail function.

In 2000, Opera began to cooperate with Ericsson, and Opera 5 was released as a free version with advertisements.

On September 2, 20051day (Beijing time), Opera released version 8.5, and removed the free version of the advertisement (it is said that the advertisement was removed to celebrate the anniversary of Opera 10).

On May 10, 2006, Opera announced that they would cooperate with Nintendo to develop a browser for Nintendo's next-generation game console Wii.

On June 20th, 2006, Opera released the official version of 9.0, which added some functions such as site preferences, Widget and BitTorrent.

On June 65438+February 2006 18, Opera released the official version of 9. 10, which added the anti-phishing function of anti-fraud protection.

On April 1 1, 2007, Opera released the official version of 9.20, adding the function of "speed dialing".

On May 7th, 2007, Opera released the official version of 9.2 1.

On September 4th, 2007, Opera released the first Alpha version of 9.5.

Software characteristics

winged

Opera makes full use of caching mechanism to load pages quickly. Opera has achieved quite good results in various evaluations. It uses exclusive typesetting engine Presto.

Multifunctional and compact

Opera has many functions, including POP mail, IRC chat, RSS browsing, voice-activated browsing, text reading (not reading Chinese), and various controls, such as calculator, exchange rate converter, weather forecast, games and so on. The latest version also has BT download function. The size of the installer without voice data and Java is generally less than 4M.

High flexibility

Opera has quite a few humanized functions, which are convenient for users to use. It supports multi-page browsing, skin, mouse gestures, page scaling and custom page formats. Mouse gesture is the first function of Opera, in addition to fast forward, automatic page login, automatic information filling, session management, notes, quick setting and other functions. It also has built-in various search engines and reasonable shortcut key settings.

Advanced system

Opera makes it extremely convenient to customize the interface, and users don't have to worry about messing it up. Users can customize rich buttons, tool menus and search lists, as well as mouse gestures and keyboard shortcuts pioneered by Opera. These backups are also very convenient. Users only need to back up the corresponding. Ini file. When reinstalling, they only need to select the corresponding menus and toolbars and mouse gesture shortcuts. Users can also use menus and toolbars written by others. Opera also has some built-in style sheets, and users can change the font structure of web pages.

High security

Opera is updated frequently, and it will be upgraded as soon as possible every time a browser defect is found. The latest Opera 9 perfectly supports various security protocols including SSL 2/3 and TLS, supports 256-bit encryption, can resist network attacks such as malicious code attacks and phishing attacks, provides detailed control over Cookie, can clear all personal browsing information saved on the computer with one click, and can automatically upgrade security. We can learn from secunia.com that the security of Opera is always higher than that of Internet Explorer, FireFox and other browsers.

Multilingual

Opera takes the form of interface loading language pack, and theoretically there can be any language version of Opera.

Controversy about software

Debate on standards: Opera strictly implements W3C web standards, and does not support other extended standards and ActiveX, and does not support some IE-only pages, so the browser has high security and low compatibility.

Compatibility of websites

The source code standard of web pages is a common problem. Many web pages do not conform to W3C standards, such as using nonstandard unique tags, incorrect syntax, or crowding out specific browsers by detecting browsers (Opera is an example). Most of these websites are tested with IE, so typesetting with other browsers will lead to incorrect results. The average user may think that there is not an error in coding, but a problem with the browser itself.

Microsoft network

Opera8 was accused of crowding out Opera users and forcing them to switch to Microsoft products on the pages that could not be accessed normally on Microsoft MSN website in MSN.com.

200 1 10 Shortly after the launch of Windows XP, MSN made a major update to its home page. Opera users said they could not access the MSN homepage. Microsoft said that "the homepage is converted to XHTML standard, and Opera can't enter because it doesn't support XHTML", but Opera retorted that Opera browser is more in line with the standard. Proved by W3C Validator that MSN homepage coding is incorrect, Microsoft is required to "see if it respects open standards before accusing others" and make another standard XHTML version on the website's press release page to "fight back". IE6 can't be displayed correctly, but Netscape 6 and Opera can. In view of this, Microsoft stopped crowding out Opera users, but then Microsoft also "manipulated" its home page, deliberately using the wrong CSS for users such as Opera and Mozilla Firefox, so that MSN could not be displayed in other browsers.