advantages of parallel data transmission

Its introduction nullified various drawbacks of initial parallel ports such as ensuring data integrity and communication supportability up to 30 feet.įig. IEEE 1284 standardizes the physical interfaces to ensure better inter-operable conditions for parallel interfaces. To overcome these downsides, a standard IEEE 1284 was introduced for parallel communication. It still had various downsides such as lack of standardization in physical interfaces and limited distance (six feet) supportability. In spite of these upgradations, parallel data communication was yet to make a mark as a suitable high speed data port. On realization of various benefits of bi-directional communication, IBM made some upgradations and brought a parallel port that supported both ways data transfer. A number of wires in the parallel port were left unused, which could have been utilized for indicating the status of printer. The downside was that it was only providing one directional communication i.e. However, there was a major downside in this Standard Parallel Port (SPP).

It was introduced as a fast interface replacement for Dot Matrix printers. It all started with the introduction of an 8 bit parallel port (also known as Standard Parallel Port) by IBM in 1981. Evolution History of Parallel Communication The decreasing cost of integrated circuits and the increasing consumer demand for more data exchange speed has made it a suitable choice over Serial links. Printers, RAM, ISA, ATA, SCSI, PCI, Front side bus ,etc., use parallel data transmission.įig. Nevertheless, it is considered to be a swift mode of transfer. This mode of communication is expensive since it requires additional cables and hardware. In contrast to serial transmission, Parallel data transfer uses more than one wire (and that is excluding the ground wire). The basic difference between a parallel and a serial channel is its quantity of various wires in the physical form that is used for transmission of data between different devices. 1 – Introduction to Parallel Communication This is possible using multiple channels for data transfer between transmitter and receiver.įig.

In parallel mode of transfer, there is a onetime transfer of data from source to destination. It comprises of several wired channels in parallel.

Parallel communication is a method of sending several data signals simultaneously over a transmission link at one time.

This post entails Parallel Communication, evolution history, how it works, characteristics, When to use it and difference in Serial & Parallel Communication. Parallel Communication has been a popular choice when a high speed data transfer is required.

Advantages of parallel data transmission