這是一個Linux下的USB攝像頭捕捉程序，是一個調用V4L2（Video for Linux 2）非常好的例子。英文介紹為：This is a driver for the USB video bridge USBVision from Zoran/Nogatech, a USB-only cable used in many "webcam" devices. It supports streaming and capture of color or monochrome video via the Video4Linux API. Most V4L apps are compatible with it, but a few video-conferencing programs do not work yet.
Ma tla b 是當今使用最為廣泛的數學軟件，它具有相當強大的數值計算、數據處理、系統
分析、圖形顯示、甚至符號運算功能，是一個完整的數學平臺，但是它不能實現端口操作和
實時控制Borland C + +Builder是一種新穎的可視化編程語言，可方便實現交互界面、數據
采集和端口操作等，但是它在數值處理分析和算法工具等方面，效率遠遠低于Matlab語言
Bing is a point-to-point bandwidth measurement tool (hence the b ), based on ping. Bing determines the real (raw, as opposed to available or average) throughput on a link by measuring ICMP echo requests roundtrip times for different packet sizes for each end of the link
