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64-bit computing |
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64-bit computing Refers to CPUs that process 64 bits as a single unit. Although CPUs migrated to 64-bits years ago, the vast majority of people still run 32-bit applications in their 64-bit personal computers. In 2003, AMD's Opteron and Athlon were the first 64-bit CPUs for PCs, and the G5 was the first 64-bit Mac CPU.New versions of Windows come in 32-bit and 64-bit versions, and Apple's Snow Leopard upgraded all core OS components to 64 bits in 2009. The complete migration from 32-bit applications to their 64-bit counterparts will take many years, if ever. For example, users still run 16-bit Windows applications that were written more than two decades ago. The 64-bit mode does not result in two times as much real work getting done as in a 32-bit computer, because it relates to internal processing. Disk, memory, cache and bus sizes and speeds play important roles in a computer's performance (see throughput). See 32-bit computing, Intel 64, G5 and bit specifications.
Bytes Typical
CPU Processed Memory
Environment At one time Capacity
64-bit 8 GB to TB
32-bit 4 4GB +
16-bit 2 1MB
8-bit 1 65KB
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No references found | AMD64 single- and dual-core processors enable customers to experience the full benefit of x86 64-bit computing, according to the company. Its single architecture will enable us to support simultaneous 32-bit and 64-bit computing with no compromises in performance. The AMD Opteron processor offers high-performance 32- and 64-bit computing, enabling more users to easily move their applications forward to parallel 64-bit computing," said Matt Oberdorfer, president and CEO, Engineered Intelligence. |
64-bit computing |
63360 63360 63360 637 64 64 64 (number) 64 AD 64 bit 64 bits 64-bit 64-bit application 64-bit computer 64-bit computers 64-bit computing 64-bit CPU64-bit graphics accelerator 64-bit key and 64 bit Message Integrity Code 64-bit Linux 64-bit Linux 64-bit processing 64-Bit Processor 64-bit version 64-bit Windows 64-Level Pilot Symbol Assisted Quadrature Amplitude Modulation 64-PSAQAM 64-QAM 64-State Quadrature Amplitude Modulation 64-way 640K 640k barrier 640kb barrier 640x480 | |||||||
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