Feature Connector

Feature Connector

Frederic P. Miller, Agnes F. Vandome, John McBrewster

     

бумажная книга



Издательство: Книга по требованию
Дата выхода: июль 2011
ISBN: 978-6-1326-5180-8
Объём: 140 страниц
Масса: 233 г
Размеры(В x Ш x Т), см: 23 x 16 x 1

High Quality Content by WIKIPEDIA articles! The Feature connector was an internal connector found mostly in some older VESA Local Bus, ISA and PCI graphics cards, but also on some early AGP ones. It was intended for use by devices which needed to exchange large amounts of data with the graphics card without hogging a computer system's CPU or data bus, such as TV tuner cards, video capture cards, MPEG video decoders, first generation 3D graphic accelerator cards and the such. Several standard existed for feature connectors, depending on the bus and graphics card type. Most of them were simply an 8, 16 or 32-bit wide internal connector, transferring data from and to the graphics card to another device, bypassing the system's CPU and memory completely. Their speeds often far exceeded the speed of normal ISA or even early PCI buses, e.g. 40 MiByte/s for a standard ISA-based SVGA, up to 150 MiByte/s for a PCI or VESA-based one, while the standard 16 bit ISA bus ran at ~5.3 MiByte/s and the VESA bus at up to 160 MiByte/s bandwidth. The Feature connector bandwidths were far beyond the capabilities of e.g. a 386, 486 and barely handled by an early Pentium.

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