this is ISP programmer. it use to program microcontroller atmel. flash memory.

东软嵌入式高级C培训(2007))，看了就知道了，很多提高程序效率的方法，和调试的技巧都很经典实用。-Neusoft Senior C Embedded Training (2007)), read to know, a lot of ways to improve program efficiency, and debugging skills are very classic and practical.