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Opera Mobile
Opera Mobile is a mobile web browser for smartphones, tablets and PDAs developed by Opera. History The first devices to run a mobile edition of Opera were the Psion Series 5, Psion Series 5mx, Psion Series 7, and then Psion netBook. They ran Opera Mobile 3.6, released in 2000. Opera Mobile was ported to the Windows Mobile operating system in 2003. * Version 6.0 was the initial release. * On June 25, 2003, the first update came in the form of version 6.01, which was a minor update, mainly correcting bugs. * Version 6.10, released on October 27, 2003, introduced several user interface and usability improvements, considerably optimized performance, and slightly improved page rendering. It was also the first version to support proxy servers, WAP pages, and the first one to be released in localized versions for 9 different languages. * On July 13, 2005, almost two years after the previous iteration, version 8.0 was launched. This version was the first to require Symbian OS ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Android (operating System)
Android is a mobile operating system based on a modified version of the Linux kernel and other open-source software, designed primarily for touchscreen mobile devices such as smartphones and tablets. Android is developed by a consortium of developers known as the Open Handset Alliance and commercially sponsored by Google. It was unveiled in November 2007, with the first commercial Android device, the HTC Dream, being launched in September 2008. Most versions of Android are proprietary. The core components are taken from the Android Open Source Project (AOSP), which is free and open-source software (FOSS) primarily licensed under the Apache License. When Android is installed on devices, the ability to modify the otherwise free and open-source software is usually restricted, either by not providing the corresponding source code or by preventing reinstallation through technical measures, thus rendering the installed version proprietary. Most Android devices ship with additional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psion Series 5
The Psion Series 5 was a personal digital assistant (PDA) from Psion. It came in two main variants, the ''Series 5'' (launched in 1997) and the ''Series 5mx'' (1999), the latter having a faster processor, clearer liquid crystal display (LCD), and updated software. There was also a rare ''Series 5mx Pro'', which differed only in having the operating system (OS) loaded into random-access memory (RAM) and hence upgradeable. Ericsson marketed a version of the Series 5mx renamed as ''MC218''. The Psion Series 5 was a major upgrade from the Psion Series 3. A Psion Series 4 does not exist, due to Psion's concern of tetraphobia in their Asian markets. The external appearance of the Psion Series 5 and the Psion Series 5mx are broadly similar, but their mainboards and other internal components were different and not interchangeable. The screens are not interchangeable because of different screen cables. The Series 5 was the first to feature a unique sliding clamshell design, whereby the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opera Mini
Opera Mini is a mobile web browser made by Opera. It was primarily designed for the Java ME platform, as a low-end sibling for Opera Mobile, but it is now developed exclusively for Android. It was previously developed for iOS, Windows 10 Mobile, Windows Phone 8.1, BlackBerry, Symbian, and Bada. As of 2022, the Android build is the only version still under active development. Opera Mini was derived from the Opera web browser. Opera Mini requests web pages through Opera Software's compression proxy server. The compression server processes and compresses requested web pages before sending them to the mobile phone. The compression ratio is 90% and the transfer speed is increased by two to three times as a result. The pre-processing increases compatibility with web pages not designed for mobile phones. However, interactive sites which depend upon the device processing JavaScript do not work properly. In July 2012, Opera Software reported that Opera Mini had 168.8 million users as o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Presto Layout Engine
Presto was the browser engine of the Opera web browser from the release of Opera 7 on 28 January 2003, until the release of Opera 15 on 2 July 2013, at which time Opera switched to using the Blink engine that was originally created for Chromium. Presto was also used to power the Opera Mini and Opera Mobile browsers. Presto is a dynamic engine. Web pages can be re-rendered completely or partially in response to DOM events. Its releases saw a number of bug fixes and optimizations to improve the speed of the ECMAScript ( JavaScript) engine. It is proprietary and only available as a part of the Opera browsers. ECMAScript engines A succession of ECMAScript engines have been used with Opera. (For the origin of their names, see Cultural notes below). Pre-Presto versions of Opera used the Linear A engine. Opera versions based on the Core fork of Presto, Opera 7.0 through 9.27, used the Linear B engine. The Futhark engine is used in some versions on the Core 2 fork of Presto, na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scalable Vector Graphics
Scalable Vector Graphics (SVG) is an XML-based vector image format for defining two-dimensional graphics, having support for interactivity and animation. The SVG specification is an open standard developed by the World Wide Web Consortium since 1999. SVG images are defined in a vector graphics format and stored in XML text files. SVG images can thus be scaled in size without loss of quality, and SVG files can be searched, indexed, scripted, and compressed. The XML text files can be created and edited with text editors or vector graphics editors, and are rendered by the most-used web browsers. Overview SVG has been in development within the World Wide Web Consortium (W3C) since 1999 after six competing proposals for vector graphics languages had been submitted to the consortium during 1998 (see below). The early SVG Working Group decided not to develop any of the commercial submissions, but to create a new markup language that was informed by but not really based on any ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dynamic HTML
Dynamic HTML, or DHTML, is a term which was used by some browser vendors to describe the combination of HTML, style sheets and client-side scripts (JavaScript, VBScript, or any other supported scripts) that enabled the creation of interactive and animated documents. The application of DHTML was introduced by Microsoft with the release of Internet Explorer 4 in 1997. DHTML allows scripting languages to change variables in a web page's definition language, which in turn affects the look and function of otherwise "static" HTML page content after the page has been fully loaded and during the viewing process. Thus the dynamic characteristic of DHTML is the way it functions while a page is viewed, not in its ability to generate a unique page with each page load. By contrast, a dynamic web page is a broader concept, covering any web page generated differently for each user, load occurrence, or specific variable values. This includes pages created by client-side scripting and ones cre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Symbian OS
Symbian is a discontinued mobile operating system (OS) and computing platform designed for smartphones. It was originally developed as a proprietary software OS for personal digital assistants in 1998 by the Symbian Ltd. consortium. Symbian OS is a descendant of Psion's EPOC, and was released exclusively on ARM processors, although an unreleased x86 port existed. Symbian was used by many major mobile phone brands, like Samsung, Motorola, Sony Ericsson, and above all by Nokia. It was also prevalent in Japan by brands including Fujitsu, Sharp and Mitsubishi. As a pioneer that established the smartphone industry, it was the most popular smartphone OS on a worldwide average until the end of 2010, at a time when smartphones were in limited use, when it was overtaken by iOS and Android. It was notably less popular in North America. The Symbian OS platform is formed of two components: one being the microkernel-based operating system with its associated libraries, and the other be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wireless Application Protocol
Wireless Application Protocol (WAP) is a technical standard for accessing information over a mobile wireless network. A WAP browser is a web browser for mobile devices such as mobile phones that use the protocol. Introduced in 1999, WAP achieved some popularity in the early 2000s, but by the 2010s it had been largely superseded by more modern standards. Almost all modern handset internet browsers now fully support HTML, so they do not need to use WAP markup for web page compatibility, and therefore, most are no longer able to render and display pages written in WML, WAP's markup language. Before the introduction of WAP, mobile service providers had limited opportunities to offer interactive data services, but needed interactivity to support Internet and Web applications such as email, stock prices, news and sports headlines. The Japanese i-mode system offered another major competing wireless data protocol. Technical specifications WAP stack The WAP standard described a pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proxy Server
In computer networking, a proxy server is a server application that acts as an intermediary between a client requesting a resource and the server providing that resource. Instead of connecting directly to a server that can fulfill a request for a resource, such as a file or web page, the client directs the request to the proxy server, which evaluates the request and performs the required network transactions. This serves as a method to simplify or control the complexity of the request, or provide additional benefits such as load balancing, privacy, or security. Proxies were devised to add structure and encapsulation to distributed systems. A proxy server thus functions on behalf of the client when requesting service, potentially masking the true origin of the request to the resource server. Types A proxy server may reside on the user's local computer, or at any point between the user's computer and destination servers on the Internet. A proxy server that passes unmodified r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psion NetBook
The Psion netBook is a small subnotebook computer developed by Psion. Released in 1999, it was for the mobile enterprise market. Description Similar in design to the later, consumer-oriented Psion Series 7, the netBook has a clamshell design, a Video Graphics Array (VGA) resolution touch-sensitive colour screen, 32 MB random-access memory (RAM), 190 MHz StrongARM SA-1100 processor and a QWERTY computer keyboard. The RAM is upgradeable by adding an extra 32 MB chip. The netBook is powered by a removable rechargeable lithium-ion battery, giving a battery life of 8 to 10 hours. The netBook runs the EPOC ER5 operating system, the predecessor of Symbian OS. Unlike the Psion Series 7, the netBook operating system runs from RAM. A Java virtual machine runtime system (environment), conforming to Java version 1.1.8, is available. In October 2003, Psion Teklogix announced the ''NetBook Pro'', replacing the original netBook. This was similar to the earlier model, but upgraded with a 16- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psion Series 7
The Psion Series 7 is a subnotebook computer from Psion that was released in 2000. In size it is fairly original: larger than a palmtop or handheld machine, but smaller than a laptop computer. It was the first and last of the Psion series to have a full color electronic visual display. It has a leather-bound clamshell design, with a touch-sensitive, Video Graphics Array (VGA) resolution liquid-crystal display (LCD) and QWERTY computer keyboard. Internally it has a 132.71 MHz StrongARM SA-1100 processor, 16 (upgradable to 32) megabyte (MB) of random-access memory (RAM) and 16 MB of internal read-only memory (ROM). The machine runs the EPOC operating system (OS), a predecessor of Symbian OS, and as such, can be programmed in the Open Programming Language (OPL), using the provided development program, or in C++ or Java, using a separate personal computer (PC) hosted development system. It can be synchronized to a PC by means of an RS-232 serial port to serial connector, a method th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
