The microprocessor which was developed the DEC corporation (at that time) on the basisofthe Alpha AXP architecture which was developed(MPU) series name. It was developedasRISCsystemMPUof the pure 64 bits, alwaysit maintainedworldwide highest processing efficiency as MPU of the single unit.

It is utilized in the network server and the graphic work station etc. where high processing efficiency is required. Windows NTof the Microsoftcorporation and the CompaqComputercorporation (at that time)Tru64 UNIX (old Digital UNIX), there isLinux and NetBSDetc. inOS whichsupportsAlpha. Microsoft has announcedin1999thatthe supportof Alpha of Windows NT is discontinued.

The 1st generation 21064 (200MHz operation) it announces the Alpha project which is started in 1988, in 1992, in 1994 21264 (400MHz and 500MHz) announcement of the 3rd generation forces 21164 (300MHz), in 1998 of 2nd generation. For the personal computer which was developed with Mitubishi Electric Corporation jointly 21164PCof inexpensive edition is announced to 1997. ... The continuation is read

Patent disputeof the Intel corporation reaches to reconciliation in 1998,it soldthe semiconductor factory and the like which DEC possessesin Intel, instead of entrustingthe productionof Alpha to Intel,the patent which DEC possessesit came to the point offor Intel to use permitting.

The DEC corporation in 1998 was purchased at the Compaq Computer corporation, the same company absorbed also Alpha-related business and property. In 2002 the Compaq Computer corporation was purchased at the Hewlett-Packard corporation, but already as for most Alpha-related businesses and property it does not remain this time.