51 microcontroller c language and the traditional c language what is the difference between

The difference is still there, 51 microcontroller C language is oriented to the microcontroller, so the hardware side of the function and definition of more, many of the same name of the function in fact, the meaning of the function is not exactly the same. For example, the printf function, the traditional C language is formatted to output to the monitor display, while the microcontroller is through the serial port to format the data transmitted out.