Global System for Mobile communications, the most widely used digital mobile phone system and the de facto wireless telephone standard in Europe. Originally defined as a pan-European open standard for a digital cellular telephone network to support voice, data, text messaging and cross-border roaming. GSM is now one of the world‘s main 2G digital wireless standards. GSM is present in more than 160 countries and according to the GSM Association, accounts for approximately 70 percent of the total digital cellular wireless market. GSM is a time division multiplex (TDM) system. Implemented on 800, 900, 1800 and 1900 MHz frequency bands.
全球移動(dòng)通信系統，使用最廣泛的數字手機系統和歐洲事實(shí)上的無(wú)線(xiàn)電話(huà)標準。最初定義為數字蜂窩電話(huà)網(wǎng)絡(luò )的泛歐洲開(kāi)放式標準，用來(lái)支持語(yǔ)音、數據、文本消息和過(guò)境漫游。GSM 現在是世界上主要的2G 數字無(wú)線(xiàn)標準之一。GSM 存在于160 多個(gè)國家中，按照GSM 協(xié)會(huì )的數字，它約占整個(gè)數字蜂窩無(wú)線(xiàn)市場(chǎng)的70%。GSM 是一種時(shí)分多址(TDM) 系統。它在800、900、1800 和1900MHz 波段實(shí)現。IrDA1. A suite of protocols for infrared (IR) exchange of data between two devices, up to 1 or 2 meters apart (20 to 30 cm for low-power devices). IrDA devices typically have throughput of up to either 115.2 Kbps or 4 Mbps. IrDA protocols are implemented in
Symbian OS phones, many PDAs, printers and laptop computers.
2. The Infrared Data Association, the industry body that specifies IrDA protocols, originally founded by Hewlett-Packard and others.
"1. 一套用來(lái)在距離達到1 或2 米（對于低功率設備為20 到30 厘米）的兩個(gè)設備之間交換數據的紅外(IR) 協(xié)議。IrDA設備的吞吐率通?？梢赃_到115.2Kbps 或4Mbps。IrDA 協(xié)議由Symbian 操作系統手機、許多PDA、打印機和膝上型計算機實(shí)現。
2. 紅外數據同盟，用來(lái)指定IrDA 協(xié)議的業(yè)內機構，最初是由Hewlett-Packard 和其他公司成立的。"JavaIndustry standard ｏｂｊｅｃｔ-oriented language and virtual machine, invented by Sun Microsystems and formally released in 1996. Java is an ideal language for network applications and applets. Sun‘s Java specifications include many Java APIs and platforms, including the JavaPhone API and PersonalJava platform, which are included in
Symbian OS.
"業(yè)內標準的面向對象的語(yǔ)言和虛擬機， 由SunMicrosystems 發(fā)明，于1996 年正式發(fā)布。Java 是網(wǎng)絡(luò )應用程序和小程序的理想語(yǔ)言。Sun 的Java 規范包括許多Java API 和平臺，其中包含Symbian 操作系統中包括的JavaPhone API 和PersonalJava 平臺。" J2MEJava 2 Platform, Micro Edition (J2ME): The edition of the Java platform that is targeted at small, standalone or connectable consumer and embedded devices. The J2ME technology consists of a virtual machine and a set of APIs suitable for tailored runtime environments for these devices. The J2ME technology has two primary kinds of components – configurations and profiles.
Java 2 平臺，Micro Edition (J2ME)：該版本的Java 平臺面向小型的獨立或可連接的消費者和嵌入設備。J2ME 技術(shù)由虛擬機和一組適用于為這些設備定制的運行時(shí)環(huán)境的API組成。J2ME 技術(shù)有兩種主要類(lèi)型的組件：配置和配置文件。JavaPhoneA Java API specification controlling contacts, power management, call control, and phonebook management, intended specifically for the programmability requirements of mobile phones.
一種用來(lái)控制聯(lián)系人、電源管理、呼叫控制和電話(huà)簿管理的Java API 規范，它專(zhuān)門(mén)滿(mǎn)足手機的可編程能力要求。KernelCore of an operating system, a kernel manages the machine’s hardware resources (including the processor and the memory), and provides and controls the way any other software component can access these resources. The kernel runs with a higher privilege than other programs (so-called user-mode programs). The power and robustness of an OS‘s kernel play a major role in shaping overall system design and reliability.
在移動(dòng)設備和固定設備之間短距離傳送數據和語(yǔ)音的無(wú)線(xiàn)通信的開(kāi)放式規范。例如，它指定手機、計算機和PDA 之間如何互連、如何與計算機、辦公室電話(huà)或家庭電話(huà)互連。第一代藍牙允許以最高1Mbps/s 的速率交換數據，即便是在電磁干擾較為厲害的地區。它使用全球可用的波段（2.4 GHz ISM 波段），通過(guò)短程無(wú)線(xiàn)鏈路傳輸和接收數據。OSOperating System: historically, the minimal set of software needed to manage a device‘s hardware capability and share it between application programs. Practically, "OS" is now used to mean all software including kernel, device drivers, co
mms, graphics, data management, GUI framework, system shell application, and utility applications. This would define Windows, Palm OS and MacOS as operating systems. Symbian provides an operating system –
Symbian OS – tailored for data-enabled mobile phones.
操作系統：在歷史上，是指管理設備能力并在應用程序之間共享該能力所必需的一組最少的軟件。實(shí)際上，“OS”目前用來(lái)表示所有軟件，其中包括內核、設備驅動(dòng)程序、通信、圖形、數據管理、GUI 框架、系統shell 應用程序和實(shí)用程序。這將把Windows、Palm OS 和MacOS 定義為操作系統。Symbian 提供了一個(gè)操作系統Symbian 操作系統，該操作系統是為允許使用數據的手機定制的。Packet-SwitchingTechnique whereby the information (voice or data) to be sent is broken up into packets, of at most a few KB each, which are then routed by the network between different destinations based on addressing data within each packet. Use of network resources is optimized, as the resources are needed only during the handling of each packet. This is an ideal model for ad hoc data communication, and works well also for voice, video and other streamed data. Mobile phones with packet-switched communication appear to be "always connected" to the data network, whereas in the case of circuit-switched connections, setup time takes around 30 seconds to connect from a mobile phone to an ISP. Use of packet-switched network can be charged according to the volume of data transferred and not to any notion of time spent online.
該技術(shù)將所發(fā)送的信息（語(yǔ)音或數據）分成多個(gè)數據包，每個(gè)數據包最多有幾個(gè)KB，這些數據包隨后由網(wǎng)絡(luò )基于每個(gè)數據包中的尋址數據在不同目標之間發(fā)送。由于只在處理每個(gè)數據包期間才需要資源，所以?xún)?yōu)化了網(wǎng)絡(luò )資源的利用。這對于特別的數據通信是理想模型，且還適用于語(yǔ)音、視頻和其他流化數據。具有分組交換通信功能的手機似乎“始終連接”到數據網(wǎng)絡(luò )，但是，對于電路交換連接，設置時(shí)間大約需要30 秒才能將手機連接到ISP。在使用分組交換網(wǎng)絡(luò )時(shí)，可以按照傳輸的數據量（而非在線(xiàn)時(shí)間）收費。PlatformA set of technology, which acts as a foundation for real-world applications, or higher-level platforms. Symbian OS includes C++ APIs, a leading Java implementation, an application suite and integration with wireless and other communications protocols.
一組技術(shù)，它們充當現實(shí)應用程序或更高級平臺的基礎。Symbian 操作系統包括C++API、領(lǐng)先的Java 實(shí)現、應用程序套件以及與無(wú)線(xiàn)和其他通信協(xié)議的集成。SIMSubscriber Identity Module. The SIM card is the smart card inserted inside all GSM phones. It identifies the user account to the network, handles authentication and provides data storage for basic user data and network information. It may also contain some applications that run on a compatible phone (SIM Application Toolkit).
用戶(hù)標識模塊。SIM 卡是插到所有GSM 手機中的智能卡。它向網(wǎng)絡(luò )標識用戶(hù)帳戶(hù)，處理身份驗證，并為基本用戶(hù)數據和網(wǎng)絡(luò )信息提供數據存儲。它還可以包含一些可在兼容的手機（SIM 應用程序工具包）上運行的應用程序。SmartphoneA generic name for voice centric mobile phones with information capability. The Ericsson R380 Smartphone is an example of such a Symbian OS phone.
以語(yǔ)音為中心的具有信息功能的手機的通用名。愛(ài)立信R380 Smartphone 就是這樣的Symbian 操作系統手機的例子。SMSShort Message Service: available on digital GSM networks allowing text messages of up to 160 characters to be sent and received via the network operator‘s message center to your mobile phone, or from the Internet, using a so-called "SMS gateway" website. If the phone is powered off or out of range, messages are stored in the network and are delivered at the next opportunity.
短消息服務(wù)：用在數字GSM 網(wǎng)絡(luò )上，允許手機通過(guò)網(wǎng)絡(luò )運營(yíng)商的消息中心或者從Internet 上使用所謂的“短消息網(wǎng)關(guān)”網(wǎng)站收發(fā)最多160 個(gè)字符的短消息。如果手機處于關(guān)機狀態(tài)或者不在服務(wù)區，短消息會(huì )存儲在網(wǎng)絡(luò )中，并在手機下次開(kāi)機或者重新回到服務(wù)區時(shí)發(fā)送。Symbian OSSymbian’s advanced open standard operating system for data enabled mobile phones. It includes a multi-tasking multithreaded core, a user interface framework, data services enablers, application engines and integrated PIM functionality and wireless communications.
Symbian 的高級開(kāi)放式標準操作系統，面向允許使用數據的手機。它包括一個(gè)管理多任務(wù)的多線(xiàn)程核心、一個(gè)應用界面框架、數據服務(wù)啟用程序、應用程序引擎以及集成的PIM 功能和無(wú)線(xiàn)通信功能。TDMA1. Time Division Multiple Access: a digital wireless telephony transmission technique. TDMA allocates each user a different time slot on a given frequency. GSM, D-AMPS, PDC and DECT use TDMA in one form or another.
2. A name generally used for D-AMPS. TDMA networks are operated in the US, Latin America, New Zealand, parts of Russia and Asia Pacific.
"1. 時(shí)分多址：一種數字無(wú)線(xiàn)電話(huà)傳輸技術(shù)。TDMA 在給定頻率為每個(gè)用戶(hù)分配不同的時(shí)隙。GSM、D-AMPS、PDC 和DECT 分別以某種形式使用TDMA。
2. 通常用于D-AMPS 的名稱(chēng)。TDMA 網(wǎng)絡(luò )在美國、拉丁美洲、新西蘭、俄羅斯部分地區和亞太地區使用。"UnicodeA 16-bit character encoding scheme allowing characters from Western European, Eastern European, Cyrillic, Greek, Arabic, He
brew, Chinese, Japanese, Korean, Thai, Urdu, Hindi and all other major world languages, living and dead, to be encoded in a single character set. The Unicode specification also includes standard compression schemes and a wide range of typesetting information required for worldwide locale support. Symbian OS fully implements Unicode.
一種16 位的字符編碼方案，允許用單個(gè)字符集對以下字符進(jìn)行編碼：西歐、東歐、西里爾文、希臘、阿拉伯文、希伯來(lái)文、中文、日文、韓文、泰文、烏爾都語(yǔ)、北印度語(yǔ)和所有其他世界主要語(yǔ)言（現存的和已消亡的）。Unicode 規范還包括用來(lái)支持世界區域設置的標準的壓縮方案和廣泛的排版信息。Symbian 操作系統完全實(shí)現了Unicode。vCardStandard defining the format of an electronic business card. All devices supporting vCard can exchange information such as phone numbers and addresses. For instance a user with a vCard-aware phonebook application on a handheld computer can easily transfer names and phone numbers to a vCard-aware mobile phone.
用來(lái)定義電子名片格式的標準。所有支持vCard 的設備都可以交換諸如手機號和地址的信息。例如，如果用戶(hù)的手提電腦上有能夠識別vCard 的電話(huà)簿應用程序，則他或她可以方便地將姓名和手機號傳送到能夠識別vCard 的手機上。WAP1. Wireless Application Protocol: a set of communication protocol standards to make accessing online services from a mobile phone simple.
2. WAP was conceived by four companies: Ericsson, Motorola, Nokia, and Unwired Planet (today called Phone.com). The WAP Forum is an industry association with over 200 members. Symbian is a full member of the WAP Forum.
"1. 無(wú)線(xiàn)應用協(xié)議：一組通信協(xié)議標準，用來(lái)簡(jiǎn)化手機中的聯(lián)機訪(fǎng)問(wèn)服務(wù)。
2. WAP 由愛(ài)立信、摩托羅拉、諾基亞和Unwired Planet（現在稱(chēng)為Phone.com）等四家公司發(fā)明。WAP 論壇是包括200 多個(gè)成員的行業(yè)協(xié)會(huì )。Symbian 是WAP 論壇的正式成員。"
