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Questions and Answers
What is the primary function of a parallel port?
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?
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?
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?
What is the main difference between a parallel port and a serial port?
What is the typical application of a parallel port?
What is the typical application of a parallel port?
How does a parallel port transmit data to a peripheral device?
How does a parallel port transmit data to a peripheral device?
What is the characteristic of data transmission in a parallel port?
What is the characteristic of data transmission in a parallel port?
What is the primary method of data transfer used by a parallel port?
What is the primary method of data transfer used by a parallel port?
What is a key feature of parallel ports that enables fast data transfer?
What is a key feature of parallel ports that enables fast data transfer?
What is the primary benefit of using a parallel port for data transfer?
What is the primary benefit of using a parallel port for data transfer?
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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.
Parallel Port Communication
- A parallel port communicates information to a peripheral device one byte at a time.
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