FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Digital Transmission is a type of signal transmission in which the signals vary discretely with time between two values: one representing the binary number 0 and the other representing 1. The variable quantity in copper cabling is generally the voltage or electrical potential.

Detailed explanation-2: -There are two methods used to transmit data between digital devices: serial transmission and parallel transmission. Serial data transmission sends data bits one after another over a single channel. Parallel data transmission sends multiple data bits at the same time over multiple channels.

Detailed explanation-3: -Digital signals are commonly used in communication systems where digital transmission can transfer data over point-to-point or point-to-multipoint transmission channels, such as copper wires, optical fibers, wireless communication media, storage media, or computer buses.

Detailed explanation-4: -A common example is the digital telephone. This type of phone, within itself, converts the voice analog signal to a digital form, allowing the device to directly connect to a digital transmission channel.