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Alpha (original name Alpha AXP) is a 64-bit reduced instruction set computer (RISC) instruction set architecture (ISA) developed by Digital Equipment Corporation (DEC). Alpha was designed to replace 32-bit VAX complex instruction set computers (CISC) and to be a highly competitive RISC processor for Unix workstations and similar markets.
- 1992; 31 years ago
- RISC
Feb 6, 2020 · The DEC Alpha, released in 1992, seems like an early implementation of a fully 64-bit microprocessor architecture. Its release led to quite a bit of both marketing hype and genuine vendor support in the mid-1990s, which supported the conclusion that Alpha would be a serious challenger to Intel x86, at least in the high-end performance and ...
- The Alpha team set out to create a high-performance architecture, planned to last for 25 years and allow for 1000-performance increase over those 2...
- Stephen Kitt has done what seems to me an excellent job of outlining features and when they were introduced. I'll take a slightly different tack, i...
- Alpha fizzled in the face of the HP/Intel partnership pushing their Itanium 64-bit architecture. I think it's important to note that during this p...
- I was at HP when the Alpha cancellation decision was made. In fact I was part of a team that ran comparative HPC benchmarks on Alpha and x86. The f...
- My personal experience with the Alpha AXP was when I attended a presentation in the Detroit area during the introduction of the product many years...
- One little known fact is that what become PostgreSQL was done on Alpha workstations with 64MB of RAM. I forget the model number of the workstations...
- I worked in service at Dec from the 80s to 2003. Regarding the public implementation of Alpha chips: on DEC boxes it was fine. My POV as related to...
- The DEC Alpha, the first mass-produced 64-bit processor, featured a pipeline architecture superior for the time. Intel contracted as a second-sourc...
Dec 7, 2020 · Dec 8, 2020 at 7:55. 1. @slebetman Right, the idea behind Alpha was very much similar to the one behind Itanium: Make the hardware vastly simpler to maximize performance, handle all the tricky bits in software instead. Both were "next-gen CPU architectures", and saidly neither succeeded in conquering the world of computing. – TooTea.
- The main thrust of the marketing behind the DEC Alpha was its 64-bit microprocessor architecture. They got there years before potential competitors...
- and would have improved the chances of a single RISC architecture having wide enough industry support to achieve critical mass rather than being ou...
- DEC's use of MIPS was only ever as basically a stop-gap. Before they used MIPS, DEC had started work on a project called Prism. It was intended to...
- DEC needed a 64-bit successor for their VAX. However, VAX was a very CISC architecture at a time when ISA and microarchitecture hadn't been decoupl...
- Using someone else's processor would fundamentally change the nature of the company, which historically was based on creating computer systems base...
- It goes deeper than just inventing another ISA, DEC being a hardware company that liked to invent ISAs, etc. As people who have commented (and I ca...
- DEC as a systems company had lots of experience in creating high-performance memory and i/o systems along with multi CPU clustered systems. All the...
- They wanted an architecture that was capable of supporting OpenVMS, Tru64 UNIX and Windows NT in 64 Bit right from the start. MIPS was not there by...
The DEC Alpha, also known as Alpha AXP, is a powerful 64-bit RISC processor developed by Digital Equipment Corporation (DEC) in 1992. It was specifically designed to replace the older 32-bit CISC-based VAX processors.
DEC Alpha, a 64-bit RISC processor developed by Digital Equipment Corporation designed to replace their 32-bit VAX instruction set. The 21064 was the first Alpha processor introduced as DECchip 21064, code named EV4, in February 1992 [2], released since September 1992.
Definition. The DEC Alpha was an architecture and line of microprocessors created by Digital Equipment Corporation (DEC). These processors, which began shipping in the early 1990s, were among the most innovative and highest performing of their era.
Four gold-coloured 300 MHz Alpha 21164 microprocessors on a Cray T3E-600 processor board. DEC Alpha 21164 (EV5) die shot. The Alpha 21164, also known by its code name, EV5, is a microprocessor developed and fabricated by Digital Equipment Corporation that implemented the Alpha instruction set architecture (ISA).
