Overview

The chip set integrates logic on PS/2 Model 30-Compatible systems to the point of reducing the printed circuit board device count by half when memories are excluded. Further, while offering complete compatibility with the PS/2 Model 30-Compatible system, the VLSI chip set improves system performance by allowing 10 MHz operation with no "wait states" (using 150 ns DRAMs), supports an additional 8M bytes of memory using EMS (Expanded Memory Specification) 4.0, and controls system speed as necessary for optimum performance.

A third device the VL82C037 VGA Video Graphics Controller, is also used in the PS/2 Model 30-Compatible system and provides high resolution graphics of up to 800 x 600 pixels with 16 colors. Graphic capabilities with this resolution are usually found only on more expensive systems.