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MSX was the name of a standardized home computer architecture in the 1980s. It was a Microsoft-led attempt to create unified standards among hardware makers, conceived by one-time Microsoft Japan executive Kazuhiko Nishi. Despite Microsoft's involvement, MSX-based machines were seldom seen in the United States and Britain, but they were popular in other markets. Eventually 5 million MSX-based units were sold worldwide.
Nishi proposed MSX as an attempt to create a single industry standard for home computers. Inspired by the success of VHS as a standard
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Before the appearance and great success of Nintendo's Family Computer, MSX was the platform for which major Japanese game studios, such as Konami and Hudson Soft, produced their titles. The Metal Gear series was originally written for MSX hardware.
wikipedia.org