1.a part of the cell containing DNA and RNA and responsible for growth and reproduction
2.the positively charged dense center of an atom
3.a small group of indispensable persons or things;
five periodicals make up the core of their publishing program
4.(astronomy) the center of the head of a comet; consists of small solid particles of ice and frozen gas that vaporizes on approaching the sun to form the coma and tail
5.any histologically identifiable mass of neural cell bodies in the brain or spinal cord
NucleusPLUS是为实时嵌入式应用而设计的一个抢先式多任务操作系统内核,其95%的代码是用ANSIC写成的,因此非常便于移植并能够支持大多数类型的处理器。从实现角度来看,NucleusPLUS是一组C函数库,应用程序代码与核心函数库连接在一起,生成一个目标代码,下载到目标板的RAM中或直接烧录到目标板的ROM中执行。