Digital Transmission of Digital Data
Computers produce binary data
Standards needed to ensure both sender and receiver understands this data
- Coding: language that computers use to represent letters, numbers, and symbols in a message
- Signaling (aka, encoding): language that computers use to represent bits (0 or 1) in electrical voltage
Bits in a message can be send in
- A single wire one after another (Serial transmission)
- Multiple wires simultaneously (Parallel transmission)