What mobile phone systems are there?

Mobile operating system is generally only suitable for high-end smart phones. At present, in the smart phone market, China market is still dominated by personal information management phones. With the participation of more manufacturers, the overall market competition began to show a decentralized trend. Judging from the market capacity, competition and application, the whole market is still in its infancy. At present, the operating systems used in mobile phones mainly include Palm OS, Symbian, Windows mobile, Linux, Android, iPhone OS, Black Berry OS 6.0 and Windows Phone7 (since the appearance of Windows Phone 7, Windows Mobile series has officially withdrawn from the mobile phone system market). Symbian Symbian Introduction Symbian is a real-time, multi-tasking pure 32-bit operating system with the characteristics of low power consumption and less memory occupation. Very suitable for mobile devices such as mobile phones. After continuous improvement, it can support GPRS, Bluetooth, SyncML and 3G technologies. Most importantly, it is a standardized and open platform, and anyone can develop software for Symbian-enabled devices. Different from Microsoft products, symbian separates the general technology of mobile devices, that is, the kernel of operating system, from the graphical user interface technology, which can adapt to different input platforms well, and also allow manufacturers to make more friendly operating interfaces for their products, in line with the personalized trend, which is the main reason why users can see different Symbian systems. Now java programs developed for this platform have begun to prevail on the Internet. Users can expand the functions of mobile phones by installing these softwares. Features Symbian, as a fairly mature operating system, has the following characteristics: First, it provides wireless communication services and combines computing technology with telephone technology. Mobile phone operating system interface II. Operating system curing. Third, the hardware structure is relatively fixed. Fourth, reduce research and development costs. Fifth, it is open. Sixth, low power consumption and high processing performance. Seventh, the security and stability of the system operation. Eighth, multi-thread operation mode. Ninth, a variety of UI, flexible, simple and easy to operate. The nine points summarized above do not mean that it is unique to Symbian OS, but that Symbian OS highlights these characteristics and gives full play to them to better serve users. Developing highly imitated iphone:/ In the development stage of Symbian, three branches appeared: Crystal, Pearl and Quarz. The first two are mainly aimed at the communicator market, which is also the most common on mobile phones, and will be the main force of smart phone operating system in the future. The first mobile phone based on Symabian system was Ericsson R380 mobile phone which went on sale in 2000. What really caught people's attention at the same time was the Nokia 92 10 launched by 200 1. It uses a crystal branch system. Nokia 7650 and 3650 launched in 2002 are both Symbian Pearl models, of which 7650 is the first smartphone product based on 2.5G network, both of which belong to Symbian version 6.0. Sony Ericsson has introduced a model that also uses the Pearl branch of Symbian. Version has been developed to 7.0, which is specially developed for 3G networks. At present, Nokia has reached 6630 and 668 1 of 8.0, which can be said to represent the most powerful mobile phone operating system today. In addition, Symbian has supported external storage devices such as MMC cards since version 6.0, which makes it possible to store more software and various large-capacity multimedia files. Today, Symbian's system has developed to OS9.4, which is the 5th edition of S60 operating system. The biggest innovation is the playability of touch. Such as 5800XM, 5530XM and the latest 5230 all adopt this system. Classification At present, the UI platform of Symbian system can be divided into 60 series, 80 series, 90 series, UIQ and so on according to the different man-machine interfaces. In order to support Symbian platform more effectively, Nokia set up a new Nokia mobile software department on 200 1 to develop mobile communication related software. In order to give mobile phone manufacturers more choices to invest in the development of Symbian mobile phones, Nokia has developed three different user interfaces: 60/80/90 series. Series60 is mainly used for digital keyboard mobile phones, Series 80 is a complete keyboard design, and Series 90 is a stylus mode design. Another important platform is UIQ developed by UIQ technology, which is invested by Symbian 100%. The UI platform Series 20/30 developed by Nokia is mainly used for low-end mobile phones. Series 40, the interface of mobile phone operating system, is mostly used by mid-range business phones and supports Java extension. 60/80/90 series is specially designed for high-end smart phones and high-end business phones, and adopts Symbian system. Series 20: 84x48 pixels series 30: 96x65 pixels, the model is generally 1 series, and the mobile phone model is 1 100, 1 108...40 series: 96x68 or/kloc-0. Mobile phone models are: 1 1 12, 1 16,10i, 6230, 72 10, 2665444. Basically located in one-handed control equipment, so far, it is divided into the first edition, the second edition, the third edition and the latest fifth edition. The fifth edition is a touch-screen version, including Nokia E77, N97, 5800XM, 5802XM, 5530XM and Samsung i89 10. The third edition is also divided into pre-FP 1 (Mr) and FP 10. Use Symbian OS Preal platform. The menus inside are arranged in the form of nine squares or twelve squares. Support MIDP JAVA and. SIS expansion package written in C++. Powerful and compact mobile phone series. The representative model is 6681/7610/n73/n80/n95. At the same time, this system and UI style are also licensed to other mobile phone manufacturers, such as Siemens, Samsung and Panasonic. Series 80: Nokia calls this series of machines Communicator, and there is only one series of models, that is, series 9. Use Symbian OS crystal platform. It represents Nokia's strongest technology, and each generation is a collection of all the most advanced technologies of Nokia at that time. The biggest feature is that it looks like a pencil case (or remote control …) and there is a standard mobile phone operation interface outside. When opened horizontally, there is a 640X200 large screen with four function keys, N shortcut keys and a complete QWERTY keyboard. The net weight is generally about 200 grams, but it is powerful. It can be said that it is the best mobile phone for business. Nokia's own top management basically uses this thing. Typical representatives are 9110/9210/9300/9500. The last E90 communicator combines Nokia's strongest technology (not to mention the transitional products of 9000 and 92 10C/9290, which are only produced by our department). Series 90: It adopts a large screen of 640X320, which is completely controlled by the touch screen except for a few functions/direction keys. The typical representative is 77 10. Because Seires 20/30 does not support extended functions, there is no corresponding publicly available UI style document. Series 40, 60/80/90 UI style documents and SDK can be downloaded for free on Nokia Developer Channel. Symbian is a user interface platform developed by UIQ, which provides a flexible user interface to meet different user needs. At present, there are many user interfaces based on Symbian, mainly 60/80/90 series and UIQ, among which UIQ has the most powerful function and is also a system closer to the category of smart phones. We can all understand this UI as a shell on Symbian, which "wraps" the interface of Symbian in different ways and adds some common applications. In order to promote and improve UIQ, Saipan established UIQ Technology Company to develop and promote UIQ. At present, UIQ is not as popular as Nokia's Series 60 system, because there are fewer mobile phone products based on UIQ platform; However, with the emergence of UIQ 3.0, this situation will change greatly, and more manufacturers will choose to configure UIQ platform for their products this year. 20091October 6, according to foreign media reports, the CEO of UIQ, a software company jointly established by Sony Ericsson and Motorola, said on Monday that the company had submitted a bankruptcy application to a local court in Sweden. The software developer began to lay off employees six months ago. Before that, shareholders decided to merge UIQ software with Saipan platform. Nokia completed the acquisition of Saipan last month, and promised that customers can use the software for free. In an interview with Reuters, Johan Sandberg, CEO of UIQ, said: "In the current financial environment, there is no opportunity to start new business. The company has about 200 employees. Introduction of 60 Series Interface As the largest user interface in Symbian smartphones, 60 Series (referred to as "s 60") has always been sought after and loved by manufacturers and users. Manufacturers have invested a lot of money in the R&D of Series 60. There have been four versions of the 60 series since its birth, and there are many PARK. The five versions of the 60 series support the following functions respectively: the basic functions of the 60 series, the first edition: personal information management; Calendar, phone book, photo album, directory and file management application synchronized with PC; Connection: Support USB, Bluetooth and IrDA protocols. SMS service: SMS service with less than 450 bytes based on GSM transmission. Mobile phone operating system interface email: supports IMAP4, POP3, SMTP, MIME2 2. Support GRPS. Others: Chinese support, PC connection software, plug-ins, RealOne player, XHTML mobile protocol. Basic functions of the second edition of Series 60: multimedia: camera, image browsing, RealOne player, personal account management of multimedia applications: supporting credit card payment file management through the Internet: allowing users to create, delete and move files or directories. Application management: personal themes: including UI themes, such as changing backgrounds and icons. Others: HTTP support, advanced MMS service, SMIL protocol support, recording function. Basic functions of the third edition of Series 60: Macromedia Flash, music playback, OMA DRM 2.0, stand-alone application, desktop theme, new content format, and support for MS ActiveSync, Windows Media Player mpeg and MS DRM coding; Synchronization 1.2, IMAP/POP, OMA email notification, OMA data synchronization, email detection. At present, there are many vendors supporting Symbian OS, and the development prospect of Symbian OS is favored by most people. Its good openness and the easy development of third-party software can occupy the market better and faster. Basic functions of the fifth edition of series 60: the s 60 platform skips the fourth edition and directly enters the fifth edition. On the basis of the third edition, some new functions have been added, such as supporting touch and handwriting operation of 640*360 pixel large screen, supporting flash lite 3.0, supporting the display of flash in web pages and watching online flash(FLV) videos on the network. Symbian^3 system, such as virtual full keyboard, supports multi-touch and has entertainment and office functions equivalent to android system. Introduction to iOS iOS is an operating system developed by Apple for iPhone. Mainly used for iPhone, iPodtouch and iPad. Just like its operating system based on Mac OS X, it is also based on Darwin. Originally, this system was called iPhone OS, until it was announced to be renamed as iOS at the WWDC conference on June 7, 20 10. [2] [3] The system architecture of IOS is divided into four layers: core OS layer, core service layer, media layer and Cocoa Touch layer. System operations occupy about 240MB of memory space.