Ⅰ 單片機80C51中的C指的是CMOS還是說用C語言進行編程
片機80C51中的C指的是CMOS。用什麼語言編程和單片沒有關系，編程語言和編譯器有關，不管用什麼語言編程，最後都會編譯成機器碼即二進制碼燒寫到單片機裡面。
CMOS single-chip 8-bit microcontrollers。
The Philips 80C31/80C51/87C51 is a high-performance
microcontroller fabricated with Philips high-density CMOS
technology. The CMOS 8XC51 is functionally compatible with the
NMOS 8031/8051 microcontrollers. The Philips CMOS technology
combines the high speed and density characteristics of HMOS with
the low power attributes of CMOS. Philips epitaxial substrate
minimizes latch-up sensitivity.