Java for mobile phones is a platform that provides support for special programs...A smartphone is a mobile phone with an operating system...There are mobile phones that support JAVA but they are not smartphones
What is a smartphone? Mobile phones, to put it simply, are a simple "1+1=" formula, "PDA+mobile phone=smartphone". Broadly speaking, in addition to the call function of a mobile phone, a smartphone also has most of the functions of a PDA, especially personal information management and browser and email functions based on wireless data communication. Smartphones provide users with sufficient screen size and bandwidth, which are convenient to carry around and provide a broad stage for software operation and content services. Many value-added services can be launched here, such as: stocks, news, weather, transportation, commodities, Application downloads, music picture downloads, and more. Smartphones integrating 3C (Computer, Communication, Consumer) will surely become the new direction of mobile phone development in the future.
What about smartphones? A popular saying is "Wenquxing + mobile phone = smart phone". As you can see from a comparison, there is a big difference between Pocket PC and Wenquxing. In terms of functional applications, Pocket PC has its own obvious advantages.
In fact, the easiest thing to distinguish between smartphones and smartphones is "whether they have an operating system." Let's take a look at the several conditions necessary to become a smartphone:
1. It has all the functions of an ordinary mobile phone and can make normal calls, send text messages and other mobile applications.
2. Have the ability to wirelessly access the Internet, that is, it needs to support GPRS under the GSM network or CDMA 1X or 3G network under the CDMA network.
3. Equipped with PDA functions, including PIM (Personal Information Management), calendar notes, task arrangements, multimedia applications, and web browsing.
4. It has an open operating system. On this operating system platform, more applications can be installed, so that the functions of smart phones can be infinitely expanded.
Since only mobile phones with operating systems can be called smartphones, what are the types of operating systems? Since the birth of the smartphone is related to the handheld computer, its operating system will definitely be related to the handheld computer. Symbian, Windows CE, Palm, and Linux are still the four major camps. However, unlike the situation where Palm and Windows CE compete for hegemony in PDA operating systems, Symbian has taken the lead in smartphone operating systems. Sony Ericsson, Nokia, Companies such as Motorola and Panasonic basically use Symbian-based operating systems.