PDA, is computer peripheral assistant function is rich, application is simple, can satisfy you daily most demand, such as reading, games, dictionary and learn, notebook, watching movies, etc fully furnished.
PDA introduction
PDA namely PDA (Personal Digital Assistant), is the Personal Digital Assistant meaning. Just as its name implies is auxiliary individual work of digital tools, mainly provides diary, directories, name card exchange and schedule, and other functions. PPC to just use people easier, operation methods and we often use Windows operating system similar, countries [1] within play PPC artificial "said. Lizards" The Palm of operation for newcomer may be some crude, but long-term use up will fondle admiringly, so now home also rapidly emerged with the mass "fat" (play a Palm). If PPC and PALM play every word is called "fat lizards".
The operating system
Handheld computers are the core of operating system, on the market at present of PDA mainly adopts two types of operating system: one kind is increasingly perfect Palm OS, currently used Palm system of PDA in world market share of all accounted for 65%, mainly in the Palm, IBM's Workpad, Sony's Clie and TRGpro handspring etc, Palm computer, another kind is Microsoft Win CE series, although late start, but has already broken the Palm OS the situation of unify the whole country, and due to Win CE authorized more extensive, now domestic most handheld computers are using Win CE system, including domestic lenovo, founder and foreign HP, COMPAQ etc companies have Win CE PDA launched. As two big operating system, adopting PalmOS products battery time than using Win CE products long life. Configuration colour display products are not monochrome screen products of the battery life long life. In multimedia performance, and Win CE than the Palm better, But interface and application performance, and easier to Wince allows a user to swing, In addition, the number of software, the Palm than Win CE more.
Of course besides above two big operating system, the international market from the perspective, handheld computers operating system and Pocket PC, EPOC, Hopen, Penbex and Linux operating system.
Three faction
The operating system can be divided into three camps: Linux OS, Palm OS, Windows Mobile (PC) Pocket. PalmOS system by using the Palm, Palm company development; While using the PC pdas WinCE series system, developed by Microsoft. Because the body performance and system of difference of these two kinds of airframe or have quite a bit of difference.
Linux OS common electronic notebook, although it is electronic notebook but also more or less joined many intelligent elements, also be the PDA recoveny, common type: business celebrity SHARP WenQuXing HaoYiTong etc, anyhow play PDA previous are playing video diary, but it varieties too multifarious no standard lack of continuity and contribute to sex, can change a year, really a not actually memo pad. Use Palm OS the Palm and use Microsoft Windows Mobile's Pocket PC (PPC). PPC USES is Microsoft's operating systems, from WINCE till now the WINDOWS MOBLIE 5.0, PPC intervention PDA period should be short in the PALM, but with its operating system usability (and WINDOWS desktop system is very like) quickly be accepted, and now the price also and the PALM yielding around, so their market share is expanding fast.
PPC typically USES high-speed CPU, be in commonly 200MHz above, (in its application software size is larger), multimedia features comparing strong, all products are used color design, suit a crowd comparative broad. But the disadvantage is obvious, wait for electricity time is very short, because of its powerful CPU and multimedia function are large, although eat electricity through years of improvement, its battery capacity increasing constantly, but stay electricity time but no distinct enhancement, usually a new PPC in full charge, one-time can continue running after 5-7 hours or so (depending on individual surprised and don't).
Rush Wallace PALM, appear earlier, early function is simpler, is stored some personal information (telephone ah, ah, personal financial management chronicle o), but is quick to pick up a cold shower, swept across America and Europe. Owing to effective product does not pay attention to multimedia, so low CPU speed are commonly 33MHz within, but in its application software point also unlike PPC weak (for application software small volume, and running low request).
And its long stay electricity ability really let PPC 6ft 2in (to get the PALM M505 speaking, parallel machine, machine configuration is low, continued operation time can reach more than 20 hours, every application three hours or so, can use around 10 days for recharging). Now PALM also begin to notice on multimedia function, also began to show some similar to PPC high-speed machine, along with up to become tall, the configuration of the electric ability also began falling rapidly, basic and PPC flat.
Product features
PDA, is computer peripheral assistant function is rich, application is simple, can satisfy you daily most demand, such as reading, games, dictionary and learn, notebook, watching movies, etc fully furnished. It not only can be used to manage personal information (such as directories, plan, etc.), more important is to browse the web, sending Email, fax, or even as a mobile phone to use. More importantly, these functions can be through wireless means. PPC to just use people easier, operation methods and we often use Windows operating system similar, domestic says play PPC artificial "lizards". The Palm of operation for newcomer may be some crude, but long-term use up will fondle admiringly.
Product function
The basic function
As "PDA" this name is same, it in many ways and our desktop alike. For example, as it is the CPU, memory, display chip and operating system, etc. And as personal computers have Mac and Windows faction cent, PDA also have the Palm and PPC cent, its main distinguishes between the different operating systems. Nonetheless, PDA function generally is same, can mainly be used to remember, document editor, playing games, multimedia playback, through built-in or external infinite nic Internet etc. And through many third party software, still can see e-books, image processing, external GPS card navigation, etc.
The main function
"Recorder" can record conference contents, can record of interviewees words, can leave life each segment cheerful singing. "Recorder" have two kinds of recording formats: PCM and Mobile Voice which use the Mobile Voice format can record for hours of Voice. Chinese-english english-chinese dictionary function
"Pocket dictionary" contains 15 million vocabulary bi-directional chinese-english english-chinese dictionary, either through English words find meaning in Chinese, also can be written Chinese to find the corresponding English story. If you want to carry on the back words, then from a start take up right here, the words and phrases enough to enable you to reach TOFEL that still has, GRE vocabulary.
Global clock control function
"Global clock" to be able to check the world in more than 100 countries and regions, and the area of the time of departure airports name, sunrise sunset time, telephone prefix and the number of kilometers traveled with Beijing apart.
Remind function
Apple computer offers a variety of functions, have remind remind, flashing light emitting diode, a voice remind remind vibration, and screen information showing reminders. One voice remind can set different sounds. Setting remind when can choose how long execution in advance warning.
The entertainment function
People can't always at work, leisure when take what to relax nervous nerve? PDA provides various recreational function so as to suit different disposition hobby users.
Fax management functions
As long as you have a handheld PC Fax software, then Modem/tlx.number Fax capabilities can be implemented.
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