An analog signal is continuous, but digital systems can only handle numbers. This simulation explains how signal reconstruction converts digital data back into a smooth analog waveform. On the left, the analog input is sampled by the ADC at a fixed clock rate. Each sample is converted into a digital code, shown by the stepped red waveform and the changing digital value display. This staircase shape is expected because the signal is now represented in discrete levels, not a continuous curve. Thes