(redirected from 64bit)


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 ?
Intel Xeon Processor E5-2640 -96GB RAM (with slots available for expansion to 128GB in future) - Graphics cardNVidia Quadro K4200 - 120GB SSD - 3TB HDD - CD/DVD RW Drive (Internal/External) - Win 7 Professional 64bit
Researchers of the Barcelona Supercomputing Center involved in the Mont-Blanc project said they have successfully tested one innovative server platform, based on the 64bit Cavium (NASDAQ: CAVM) ThunderX ARMv8 chip and integrated by E4 Computer Engineering.
20, 2015 /PRNewswire/ -- In light of the popularity of 64bit octa-cores smartphone chips, SISWOO Europe S.
provides complete support of SVG format for Adobe Creative Suite, including Adobe InDesign, Adobe InDesign Server, Adobe InCopy, Adobe Photoshop, Adobe Photoshop Elements, and Adobe Bridge, both for Windows and Mac, both 32 and 64bit.
Kabini' PC config is based off the 'Larne' reference design with 2013 AMD A4-5000 with AMD Radeon HD 8330 graphics, 4G DDR3 1600 and Windows 8 64bit.
The new solution comes in two options, one with an Acer Tower Server AT110F2 and the second with a Acer Rack Server AR320F2 with a three-year warranty, and includes Windows 2008 Server R2, Foundation Edition, 64Bit, English-ROK Kit; Quest NetVault Backup Server Starter Edition including three year maintenance and upgrade; Bitdefender Small Business Security Solution with a three-year subscription and Netgear ReadyNAS Pro4 4TB Storage Solution with a five-year warranty.
The latest product offering represents a continued focus on tool design and manufacture and includes a host of productivity enhancements including core 3D CAM development, 64Bit support, JT Open and further migration of PEPS capabilities onto the VISI platform,
NEC intends to enhance and expand its line of Intel(R) Itanium(R) 2 processor-based servers and 64bit Linux enterprise solutions with Oracle(R) Database 10g to meet mission-critical business needs for the enterprise market.
0 moves to the 64bit processing power platform of the new Apple servers.
Sporting a `70sstyle retro metallic case, the G5 is the first 64bit consumer personal computer and is promised to be the fastest of its kind in the world.
The system supports 32bit & 64bit applications, simultaneously & without code conversion, making it unique.
Some of the patents relate to X86 emulation in 64bit architecture, useful for Intel in the ongoing development of its IA-64/EPIC architecture Merced CPU.