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Le Pentium II[1] brand refers to Intel's sixth-generation microarchitecture ("P6") and x86-compatible microprocessors introduced on May 7, 1997. Containing 7.5 million transistors (27.4 million in the case of the mobile Dixon with 256 KB L2 cache), the Pentium II featured an improved version of the first P6-generation core of the Pentium Pro, which contained 5.5 million transistors. However, its L2 cache subsystem was a downgrade when compared to the Pentium Pros.
In 1998, Intel stratified the Pentium II family by releasing the Pentium II-based Celeron line of processors for low-end workstations and the Pentium II Xeon line for servers and high-end workstations. The Celeron was characterized by a reduced or omitted (in some cases present but disabled) on-die full-speed L2 cache and a 66 MT/s FSB. The Xeon was characterized by a range of full-speed L2 cache (from 512 KB to 2048 KB), a 100 MT/s FSB, a different physical interface (Slot 2), and support for symmetric multiprocessing.
In February 1999, the Pentium II was replaced by the nearly identical Pentium III, which only added the then new SSE instruction set. However, the older family would continue to be produced until June 2001 for desktop units,[2] September 2001 for mobile units,[3] and the end of 2003 for embedded devices.[4]
Notes et références[modifier | modifier le code]
- « Microprocessor Hall of Fame » [archive du ], Intel (consulté le )
- « Product Change Notification #896 » [archive du ], Intel, (consulté le )
- « Product Change Notification #954 » [archive du ], Intel, (consulté le )
- Erreur de référence : Balise
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Bibliographie[modifier | modifier le code]
: document utilisé comme source pour la rédaction de cet article.
- (en) United States Department of Energy, (DOE/NV--209-REV 16) United States nuclear tests : July 1945 through September 1992, Las Vegas, Nevada (États-Unis), U.S. Department of Energy, National Nuclear Security Administration, Nevada Field Office, , 129 p. (lire en ligne [PDF]).
- (en) Defense Threat Reduction Agency, Defense's Nuclear Agency, 1947–1997, Washington, DC (États-Unis), United States Defense Threat Reduction Agency, , 1re éd., 467 p. (lire en ligne [PDF]).
- (en) Herman Hoerlin, (Report LA-6405) United States high-altitude test experiences : A review emphasizing the impact on the environment, Los Alamos, Nouveau-Mexique (États-Unis), Los Alamos Scientific Laboratory (LASL), , 63 p. (lire en ligne).
- (en) F. P. Gladeck, K. G. Gould, J. H. Hallowell, E. J. Martin, F. W. McMullan, R. A. Miller, M. J. Osborn, C. F. Shelton, L. Berkhouse et F. S. Calhoun, (Report DNA6038F) Operation Hardtack I – 1958 : United States atmospheric nuclear weapons tests – Nuclear test personnel review, United States Defense Nuclear Agency (US DNA), , 474 p. (lire en ligne [PDF]).
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Cat égorie:Essai nucléaire des États-Unis Cat égorie:Pacific Proving Grounds Cat égorie:1958 aux États-Unis Cat égorie:Nom de code
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