parallel transmission


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parallel transmission

[′par·ə‚lel tranz′mish·ən]
(computer science)
The transmission of characters of a word over different lines, usually simultaneously; opposed to serial transmission.

parallel transmission

Transmitting several bits of data simultaneously using multiple lines (8, 16, 32, 64). The pathways between the CPU and memory are parallel, and they used to be parallel between the CPU and peripheral devices. For example, parallel ATA (PATA) was replaced with serial ATA (SATA); parallel PCI was replaced with serial PCIe. See SATA, PATA, PCI and PCIe.

Why the Change?
At increasingly higher transfer rates, it is more efficient to build channels that carry data over a single wire rather than 32 or 64. For more details, see parallel vs. serial. Contrast with serial transmission. See system bus.
References in periodicals archive ?
Starting with the crossed position of P3 and P4, the second polarizer is rotated around the propagation direction by 90[degrees] in order to obtain parallel transmission directions of the polarizers from the compensation beam.
TOKYO:5802)(ISIN:JP3407400005), a leading supplier of solutions for optical components, modules and sub-systems, today announced that it is expanding its 10Gbps portfolio with the introduction of a CWDM-SFP+ transceiver module that can provide parallel transmission at 80Gbps.
As service providers turn towards 40G/100G volume deployments to meet the speed requirements for metro and core networks, they are faced with the following constraints: 40G/100G CFP technology that is still not in the mature stage, a new concept of parallel transmission rendering legacy single-output measurements no longer valid, and the short supply of relatively high-cost CFPs in the market.
The project includes construction of two parallel transmission line segments to connect the new Red Bluff Substation to the existing Devers-Palo Verde 500-kilovolt transmission line and to the new Devers-Colorado River 500-kilovolt transmission line, which PAR is currently installing.

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