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VESA Local Bus (VL-BUS) Definition
DocumentID: 616435
Revision Date: 29-Feb-96 1:37:25 PM

The information in this document applies to:
WordPerfect® 5.1 for DOS

Problem

Solutions: VESA Local Bus (VL-BUS):
A new standard high-speed bus for PCs originally designed to move video between the CPU and the screen at faster speeds than the conventional AT (ISA) bus. Computers using VESA Local Bus typically have either the ISA or EISA bus plus two or three VESA Local Bus connectors. Local bus video cards, hard drive controllers, etc., can operate at the full clock speed of the motherboard (25MHz, 33MHz, 50MHz, etc.,) without affecting the ISA or EISA bus speed. The ISA bus usually operates at 8MHz. The EISA bus can operate at full clock speed, but slows down to 8MHz if any ISA card is installed. VESA Local Bus allows some cards to run at full clock speed while other cards run at slower bus speeds.

Answer:

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