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64-bit

   Also found in: Wikipedia, Hutchinson 0.01 sec.
(architecture)64-bit - A term describing a computer architecture based around an ALU, registers and data bus which are 64 bits wide.

64-bit processors were quite common in 1996, e.g. Digital Alpha, versions of Sun SPARC, MIPS, IBM AS/4000. the PowerPC and Intel were expected to move to 64 bits at their next generation - PPC 620 and Intel P7.

A 64-bit address bus allows the processor to address 18 million gigabytes as opposed to the mere 4 gigabytes allowed with 32 bits. There were in 1996 already hard disks which can hold over 4GB. Floating point calculations can also be more accurate.

A 64-bit OS is needed as well to take advantage of the CPU. In 1996 there were only a few 64-bit operating systems, including OS/400, Digital Unix, Solaris (partialy). A 32-bit OS can run on a 64-bit CPU.


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lt;p>Only three Cisco UC products among a list of about 50 published by Cisco Subnet blogger Brad Reese specifically promised 64-bit support, and this only through the use of a 32-bit emulator.
Summary: Cimatron Limited (Nasdaq: CIMT), a leading provider of integrated Cimatron Limited (Nasdaq: CIMT), a leading provider of integrated CAD/CAM solutions for mold, tool and die makers as well as manufacturers of discrete parts, announced that it has released a 64-bit Version [beta] of CimatronE 9.
Worldwide Computer Products News-2 November 2009-Cimatron launches 64-bit beta of CimatronE 9.
 
 
 
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