MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -In the case of serial transmission of data, the data gets transferred bit by bit. On the other hand, in parallel transmission, only a character or a single byte (or 8 bits) is transmitted at any given time. We use both of these to connect with the peripheral devices and also communicate with them.

Detailed explanation-2: -Serial transmission is ‘full duplex’ since the sender can send and receive data at the same time. Parallel transmission is ‘half duplex’ since the data can be sent or received at any given time.

Detailed explanation-3: -Data communication between different devices are broadly categorised into 3 types: Simplex communication, Half-duplex communication, and Full-duplex communication. It is a one way or unidirectional communication between two devices in which one device is sender and other one is receiver.

Detailed explanation-4: -Parallel Transmission: In this transmission, data bits are transmitted simultaneously through multiple links, which are placed parallel to each other. Contrary to serial transmission where only one bit is transmitted at a time, eight bits of data can be transmitted simultaneously in parallel transmission.