Learn in the textbookUnits of Information and the Digitization Process
DefinitionA/D conversion (A/D変換) is the processing that turns an analog signal into a digital signal.
ExplanationIn A/D conversion, the input signal is sampled and quantized, and the resulting values are encoded and output as a bit string. The circuit or component that does this is called an A/D converter.
AnalogyIt is like reading a changing air temperature on a thermometer once a minute and writing down the nearest mark on the scale in a notebook.
Memory hookA stands for Analog and D for Digital, so read the slash from left to right as "from A to D" to get the direction of the conversion.