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Parallel Port Communication

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Questions and Answers

What is the primary function of a parallel port?

To transmit data in parallel to a peripheral device (correct)

To receive power from a peripheral device

To convert digital signals to analog signals

To transmit data serially to a peripheral device

What type of data transmission does a parallel port use?

Wireless data transmission

Parallel data transmission (correct)

Serial data transmission

Analog data transmission

What is the main advantage of using a parallel port to communicate with a peripheral device?

It makes the peripheral device more expensive

It reduces the size of the peripheral device

It increases the speed of data transmission (correct)

It reduces the power consumption of the peripheral device

What is the main difference between a parallel port and a serial port?

The number of bits transmitted at once Signup and view all the answers

What is the typical application of a parallel port?

To connect a printer to a computer Signup and view all the answers

How does a parallel port transmit data to a peripheral device?

one byte at a time Signup and view all the answers

What is the characteristic of data transmission in a parallel port?

simultaneous transmission Signup and view all the answers

What is the primary method of data transfer used by a parallel port?

byte-parallel transmission Signup and view all the answers

What is a key feature of parallel ports that enables fast data transfer?

multiple-bit transmission Signup and view all the answers

What is the primary benefit of using a parallel port for data transfer?

speed Signup and view all the answers

Study Notes

Parallel Port Communication

A parallel port sends data 8 bits (1 byte) at a time to a peripheral device, such as a printer, using multiple wires to transmit multiple bits simultaneously.
The parallel port uses a 25-pin connector (DB-25) to connect to the peripheral device.
It operates in a unidirectional manner, meaning data is sent only from the computer to the peripheral device, not the other way around.
The parallel port uses a parallel communication protocol, where data is transmitted in parallel, allowing for faster data transfer rates compared to serial communication.
The data is transmitted using a specific protocol, such as the Centronics protocol, which defines the signal lines and their functions.
The parallel port is often used for printer connections, but can also be used for other devices, such as scanners and_external hard drives.