# In pulse code modulation what is pulse word represent?

we study lot of things in PCM we do sampling quantization encoding etc but we never come across pulse so what is pulse word represent in PCM

Think of a DAC as a thing that is emitting a train of pulses, each new one hard up against the last one, and each one exactly as wide as a sampling interval (sampling interval = $$T_s = \frac{1}{f_s}$$).