(redirected from 64-Bit Processor)


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.
References in periodicals archive ?
The first iPhone that operated on a 64-bit processor was the iPhone 5c running on iOS 7.
Despite the availability of a 64-bit processor, most of the Windows 8.
Kraznich says that the Android tablets could be launched for $150, which seems highly unlikely that the device will use a 64-bit processor.
For servers, a 64-bit processor is a no-brainer as the applications and requirements are already there, Brookwood said.
3 of the Engineering Fluid Dynamics analysis software suite includes: 64-bit processor support for increased analysis power, speed and user convenience; support of CATIA V5 R17 in both 32- and 64-bit formats; and an integrated interface with MSC Patran for finite element analysis.
The E-Series line includes an all 64-bit processor selection, DDR2 memory, fast SATA hard drives, and the latest Intel 945 chipset as well as dual core processor options.
But to get the biggest advantages from a 64-bit processor you need an operating system and software that has been specially written for it.
Worldwide Computer Products News-4 June 2002-Infineon's new broadband processor family based on MIPS 64-bit processor core (C)1995-2002 M2 COMMUNICATIONS LTD http://www.
The new series differs from the J-ELII line mainly in its improved controls, which now have a touchscreen and larger display, plus a faster, 64-bit processor.
It incorporates the Sun UltraSPARC RISC 64-bit processor with the 64-bit Solaris 8 operating system.
Samsung Galaxy A Series composed of Galaxy A3, Galaxy A5 and Galaxy A7 was leaked and reported to feature 64-bit processor chipsets.
TELECOMWORLDWIRE-4 June 2002-Infineon's new broadband processor family based on MIPS 64-bit processor core (C)1994-2002 M2 COMMUNICATIONS LTD http://www.