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Table Of Contents  CertiGuide to A+ (Core Hardware)
 9  Chapter 0000:  The Start of the PC
      9  IV  PC Technology Evolution

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VLB

The battle of the expansion bus left one group of manufacturers very unhappy. Who would want to design and make video cards for two different incompatible systems? The Video Electronics Standards Association (VESA) created the Video Local Bus (VLB), as an extension of ISA in an attempt to improve video performance and make only one type of video card.

The VESA-VLB bus was the slot to have when ordering your new 80486 computers. While this offering greatly improved video performance, VLB died in the bus wars with the introduction of a new bus from Intel.

Figure 7: A VLB card is easy to Identify. It always has contacts on the other end of the card.

 


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