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== Overview == | == Overview == | ||
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Introduced in late 1992, Alpha was a family of microprocessors designed for high-end desktops, workstations, and servers. At their introduction, those chips were the world's fastest, though their competitiveness dropped at later iterations (though some attributed this to Alpha's acquisition by Compaq in [[1998]]). Alpha CPUs have gone through a handful of microarchitectures, each improving performance and capabilities. | Introduced in late 1992, Alpha was a family of microprocessors designed for high-end desktops, workstations, and servers. At their introduction, those chips were the world's fastest, though their competitiveness dropped at later iterations (though some attributed this to Alpha's acquisition by Compaq in [[1998]]). Alpha CPUs have gone through a handful of microarchitectures, each improving performance and capabilities. | ||
Following DEC's acquisition by [[Compaq]] in 1998, Alpha's architecture was licensed to [[Samsung]] with the processors marketed and supported through [[Alpha Processor, Inc|API]] for a short period of time. Since Compaq was already committed to Intel's {{intel|Itanium}}, Alpha's development more or less fell by the wayside. Despite continuous development of Alpha by Compaq, Compaq really didn't know what to do with Alpha and by [[2001]] they announced that they would phase out Alpha in favor of {{intel|Itanium}}. HP showed renewed interest in Alpha following Compaq's merger with HP in 2001. Nevertheless, HP never restarted the development of the {{compaq|Alpha 21464|l=arch}} and the family was entirely phased out by the mid 2000s. | Following DEC's acquisition by [[Compaq]] in 1998, Alpha's architecture was licensed to [[Samsung]] with the processors marketed and supported through [[Alpha Processor, Inc|API]] for a short period of time. Since Compaq was already committed to Intel's {{intel|Itanium}}, Alpha's development more or less fell by the wayside. Despite continuous development of Alpha by Compaq, Compaq really didn't know what to do with Alpha and by [[2001]] they announced that they would phase out Alpha in favor of {{intel|Itanium}}. HP showed renewed interest in Alpha following Compaq's merger with HP in 2001. Nevertheless, HP never restarted the development of the {{compaq|Alpha 21464|l=arch}} and the family was entirely phased out by the mid 2000s. | ||
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Facts about "Alpha - DEC"
designer | DEC +, Compaq + and HP + |
first announced | February 1992 + |
first launched | November 20, 1992 + |
full page name | dec/alpha + |
instance of | microprocessor family + |
instruction set architecture | Alpha + |
main designer | DEC + |
manufacturer | DEC +, Samsung +, Intel + and IBM + |
microarchitecture | 21064 +, 21164 +, 21264 + and 21364 + |
name | Alpha + |
package | PGA-431 +, PGA-499 +, PGA-587 + and PGA-1443 + |
process | 750 nm (0.75 μm, 7.5e-4 mm) +, 675 nm (0.675 μm, 6.75e-4 mm) +, 500 nm (0.5 μm, 5.0e-4 mm) +, 350 nm (0.35 μm, 3.5e-4 mm) +, 250 nm (0.25 μm, 2.5e-4 mm) +, 180 nm (0.18 μm, 1.8e-4 mm) + and 130 nm (0.13 μm, 1.3e-4 mm) + |
technology | CMOS + |
word size | 64 bit (8 octets, 16 nibbles) + |