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提及64位,就不能不提及 DEC 公司。1992年,DEC率先研制出世界上第一块全64位 RISC 微处理器芯片Alpha 21064,打开了计算机 CPU 技术通向64位世界的大门。Alpha21064所具有的高性能、高速度及海量寻址能力,使它被载入《吉尼斯世界纪录》中。一时间,因为Alpha21064的诞生,DEC 成为世人注目的焦点。DEC 是前进的,两年后,第二代的 Alpha21064A 及第三代的Alpha21164相继问世,很快促成了掌上电脑、台式 PC、个人工作站、高档企业服务器及网络产品的繁荣与进步。DEC一直追求高速处理能力及大规模计算解决方案,在业界享有盛名。64位 Alpha 芯片自 DEC 出,是业界意料之中的事儿。如今64位系统供应商中,虽然还有HP 等知名公司,但 DEC64位解决方案始终独具特色。64位技术为处理复杂的信息和数据类型提供了基础,如今已在科研和工程应用中发挥不可或缺的怍用。Alpha 芯片,所有寄存器部是64位,可处理64位长的数据、指令,速度很快;64位地址空间是32位空间的40亿倍,而32位已可以达到4GB,这样直接寻址空间几乎是
Mention 64-bit, can not but mention DEC company. In 1992, DEC pioneered the world’s first full 64-bit RISC microprocessor chip Alpha 21064, opened the door to the 64-bit world of computer CPU technology. Alpha21064 has the high performance, high speed and mass addressing capabilities, it is included in the Guinness Book of Records. For a time, because of the birth of Alpha21064, DEC has become the focus of the world’s attention. DEC is advancing. Two years later, the second-generation Alpha21064A and the third-generation Alpha21164 came into being one after another and quickly brought prosperity and progress to handheld computers, desktop PCs, personal workstations, high-end enterprise servers and networking products. DEC has been pursuing high-speed processing power and large-scale computing solutions, renowned in the industry. 64-bit Alpha chip since DEC is the industry’s expected thing. Today, 64 system vendors, although there are well-known companies such as HP, but DEC64 bit solution has always been unique. 64-bit technology provides the foundation for handling complex information and data types and is now indispensable for scientific research and engineering applications. Alpha chip, all registers are 64-bit, can handle 64-bit data, instructions, fast; 64-bit address space is 40 billion times 32-bit space, and 32-bit can reach 4GB, so that direct addressing space Almost