Based On Open Source Technology Assisted Learning The Design And Implementation Of Pda

The functionality of the existed assistant learning PDA is relatively simple,difficult to expand, so it is not able to be applied abroad. A low-cost, scalable,high-performance PDA-assisted learning product should be developed.The product is designed based on open source technology to GNU/Linux as thecore operating system to support the POSIX standard application development interface;QT/QTOPIA system is used as a graphical user interface components and frameworksto support a large number QT/QTOPIA PDA Application.Based on the FFMPEG/Mplayer open source multimedia technology, thehardware platform has been optimized, and supports a good multi-media learning andentertainment features; using SQLite and Berkeley DB-based open source databasetechnology as the data storage and access platforms, the system supports millions ofhigh-level dictionary search and retrieve samples.This paper mainly completed a face of the educational market multimedia assistedlearning PDA, at acceptable cost of support, it can include MP3MPEG4audio, videoplayback, support for visual repetition, audio-visual teaching and other multimediafeatures. It also achieved with the windows PC data sharing, transfer; support electronicdictionary, personal information management and game function.The implementation of the system, can be produced to meet the learning,communication and media player, a personal digital assistant function of PDA products,can effectively control the cost of the product, make it become a with the currentmainstream products in the market have a considerable competitive edge.