Digital electronics are any electronic systems that use digital, rather than analogue signals. Digital signals are broken into distinct states. Typically, two states are used: on (usually represented by a large voltage close to that of the power supply), and off (close to zero vaults). In digital circuits, any voltage within a certain range will be interpreted as having a particular state. This means that small fluctuations in actual signal voltages will generally have less impact on digital circuits than on their analogue equivalents. The following suppliers supply digital electronics together with digital media and RFID tags for all industries and applications.