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PornStar
11-14-2000, 05:08 AM
Could you provide me with developments in peripherals in the last few years?

Paleo Pete
11-14-2000, 07:18 AM
The first PCs were made by IBM in the late 80's. They had one short slot, I forget the name for it, that connected all periferals, and was 8 bit slot.

The AT, or 80286, introduced the ISA bus, which was the same slot with another section added to make it 16 bit. Most had one or two 8 bit slots included for floppy controllers and printer cards.

The 486 introduced the PCI bus, which runs at half the speed of the main bus, maximum 33MHz, and is a 32 bit bus.

Along the way a couple others were designed, which fell by the wayside. IBM developed the MGA bus, which offered very good performance, but was highly proprietary.

Several companies got together and developed the VLB bus, which also offered good performance, but the PCI bus pushed it out of the picture, being faster.

2-3 years ago the AGP slot was developed for video purposes. It is twice as fast as the PCI bus, 66MHz and is a 64 bit bus. It's strictly for video purposes. The AGP is the only new one in the past 5 years or so, and is currently the video standard.

For more info, and a much better description, see the PCGuide's section on System Buses (http://www.pcguide.com/ref/mbsys/buses/index.htm)

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Paleo Pete
11-14-2000, 07:51 PM
One correction...



IBM developed the MGA bus,

should be MCA, not MGA.


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