Opera 9.23 является неплохой альтернативой таким программам, как Internet Explorer и Netscape Navigator, но в отличие от своих конкурентов имеет целый ряд положительных отличий: занимает меньше места, быстрее работает, обладает приятным интерфейсом и возможностью смены скинов, поддерживает технологии MDI/SDI, имеет дополнительные возможности по обработке веб-страниц, работы с закладками и т.д.

Opera is known as the fastest and smallest full-featured browser, a first choice for people using older PCs and Windows 95 and a brilliant alternative to the default IE from Microsoft. This new version has a chance to actually beat IE hands-down because it has a truckload of new and exciting features. It complies to all the current web-page standards, it has a completely new interface (you can choose from single window and multi-window view), built-in search, a download manager, an advanced mail/news reader, print preview, a huge bookmark collection and much more in a 2Mb free package! Well, the free package also includes banner ads, but Opera is believed to be completely free of spyware, unlike some of its competitors. It’s lightning fast as well as stable and it looks gorgeous. It’s simply perfect! For a complete list of features check out the official website, there’s vastly more to discover.

Opera, first of all, is client World Wide Web, that is the program for extraction of the information from WWW as the documents created with help HyperText Markup Language (language of a marking of hypertext HTML).
Low requirements to resources of system. Opera will work even on 386 computer about 6 Mb of operative memory.MDI the interface. You can open without special expenses of memory any quantity of windows inside one working window, having chosen thus a tabulared or cascade mode.

Changelog
More Speed Dial stability fixes
Fixed issue with some mouse wheels and scrolling up on Vista
Fixed another fuzzer crash

Here are some of the things waiting for you with Opera 9.5 alpha:

New ECMAscript (i.e JavaScript) engine, which is faster and less-memory intensive. The new ECMAscript engine uses fewer resources than anything we’ve done previously.
Fixed thousands of bugs in Opera’s rendering engine, thus improving Opera’s compatibility with many sites.
Added support for the CSS3 overflow-x and overflow-y properties.
Added support for JavaScript 1.5 Getters and Setters.
Improved support for Rich Text Editing.
Fixed problems seen in various Google’s sites.
Added support for screenreaders such as Window-Eyes, Jaws, and VoiceOver on OS X.
Improved spatial navigation and made keyboard shortcuts more accessible for new users.
Set all single key shortcuts to be disabled by default.
Improved support for Opera on Windows Vista.
Opera integrates better with default program dialogs on Windows XP and Vista.
On the Mac OS X, Opera looks and feels more like a native OS X application, with improved tabs, better default fonts, and pulsing buttons.
Releasing Opera in 64-bit version.
New indexing and storage back-ends for Opera Mail, which uses less memory, accesses the hard drive less often, and performs normal functions faster.
New IMAP back-end.
Freezing is largely gone when Opera checks for new mail or newsfeeds.
Opera Mail is now more stable, faster, and less buggy.
Mail checking and processing is faster and indexing and searching are more reliable.