It most definitely is large. It's not just about all of the recent IoT devices. Firmware for all of the controllers on your motherboard is written in C. Most de

It most definitely is large. It's not just about all of the recent IoT devices. Firmware for all of the controllers on your motherboard is written in C. Most device drivers are still written in C. Many operating systems (linux) are written in C. Then you have all of the controllers in the devices in your home (e.g. microwave, oven, digital clock, entertainment devices, etc.)