Everyone knows that the world is analog in nature, yet we insist on dealing with analog signals by digital means. Analog sensor outputs are quickly converted to digital form to improve noise immunity ...

Industrial digital input chips provide serialized data by default. However, in systems that require real time, low latency, or higher speed, it may be preferable to provide level-translated, real-time ...

This is just a general question. I know, obviously, that there are RS-232 "serial ports" and IEEE 1284/Centronix ports "parallel ports," and that these are "digital" connections. Then you have things ...