64-bit wikipedia - EAS

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  1. 64 bit - Wikipedia 64 bit Da Wikipedia, l'enciclopedia libera. 64 bit, in informatica, indica che in una data architettura il formato standard di una variabile semplice (intero, puntatore, handle ecc.) è di 64 bit di lunghezza. Generalmente questo riflette la dimensione dei registri interni della CPU usata per quell'architettura.
    it.wikipedia.org/wiki/64_bit
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    What does 64-bit mean?
    In computer architecture, 64-bit integers, memory addresses, or other data units are those that are 64- bit (8- octet) wide.
    en.wikipedia.org/wiki/64-bit_computing
    What is the first 64 bit processor?
    AMD introduces its Opteron and Athlon 64 processor lines, based on its AMD64 architecture which is the first x86-based 64-bit processor architecture. Apple also ships the 64-bit "G5" PowerPC 970 CPU produced by IBM. Intel maintains that its Itanium chips would remain its only 64-bit processors.
    en.wikipedia.org/wiki/64-bit_computing
    What is x86 64 bit instruction set?
    x86-64 (also known as x64, x86_64, AMD64 and Intel 64) is the 64-bit instruction set in the x86, first released in 1999. It introduced two new modes of operation, 64-bit mode and compatibility mode, along with a new 4-level paging mode.
    en.wikipedia.org/wiki/X86-64
    What is the difference between 32 bit and 64 bit?
    It means an operating system can use more computer memory at one time. This makes a 64-bit system much faster than a 32-bit system. A 32-bit system can only use up to 3.56 gigabytes of random-access memory (called RAM or memory).
    simple.wikipedia.org/wiki/64-bit_computing
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    64-bit computing - Wikipedia

    https://en.wikipedia.org/wiki/64-bit_computing

    In computer architecture, 64-bit integers, memory addresses, or other data units are those that are 64-bit (8-octet) wide. Also, 64-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures are those that are based on processor registers, address buses, or data buses of that

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    Processor registers are typically divided into several groups: integer, floating-point, single instruction, multiple data(SIMD), control, and often special registers for address arithmetic which may have various uses and names

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    Many computer instruction sets are designed so that a single integer register can store the memory address to any location in the computer's physical or virtual memory.

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    In principle, a 64-bit microprocessor can address 16 EiB (16 × 1024 = 2 = 18,446,744,073,709,551,616 bytes, or about 18.4 exabytes) of

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    32-bit vs 64-bit
    A change from a 32-bit to a 64-bit architecture is a fundamental alteration, as most

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    In 32-bit programs, pointers and data types such as integers generally have the same length. This is not necessarily true on 64-bit machines. Mixing data types in programming languages such as C and its descendants such as C++ and Objective-Cmay thus work on 32-bit

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    As of May 2018 , 64-bit architectures for which processors are being manufactured include:
    • The 64-bit extension created by Advanced Micro Devices(AMD)

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  4. Điện toán 64-bit – Wikipedia tiếng Việt

    https://vi.wikipedia.org/wiki/Điện_toán_64-bit

    Từ quan điểm phần mềm, tính toán 64-bit có nghĩa là sử dụng mã với địa chỉ bộ nhớ ảo 64-bit. Tuy nhiên, không phải tất cả các lệnh 64-bit đều hỗ trợ đầy đủ các địa chỉ bộ nhớ ảo 64-bit; Ví dụ, x86-64 và ARMv8 chỉ hỗ trợ 48 bit địa chỉ ảo, với 16 bit còn ...

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    • 64-bit computing - Simple English Wikipedia, the free ...

      https://simple.wikipedia.org/wiki/64-bit_computing

      In computer science, 64-bit computing refers to a microprocessor's data stream. It means an operating system can use more computer memory at one time. This makes a 64-bit system much faster than a 32-bit system. A 32-bit system can only use up to 3.56 gigabytes of random-access memory (called RAM or memory). A 64-bit system can use much more memory making it …

      • Thời gian đọc ước tính: 40 giây
      • 64-bit - Wikipedia

        https://ro.wikipedia.org/wiki/64-bit

        64-bit este o arhitectură de calculatoare care utilizează microprocesoare ale căror registre, magistrale de date, adrese și instrucțiuni au lățimea cuvântului de 64 de biți (8 octeți). Microprocesoarele pe 64 de biți sunt întâlnite și cu specificația x86-64. Arhitecturile pe 64 de biți pot adresa 2 numere cuprinse între 0 și 18,446,744,073,709,551,615 și pot folosi 4 GB de memorie sau mai mult.

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      • x86-64 - Wikipedia

        https://en.wikipedia.org/wiki/X86-64
        • History
          AMD64 (also variously referred to by AMD in their literature and documentation as “AMD 64-bit Technology” and “AMD x86-64 Architecture”) was created as an alternative to the radically different IA-64 architecture designed by Intel and Hewlett-Packard, which was backward-incomp…
        • Implementations
          AMD's processors implementing the AMD64 architecture include Opteron, Athlon 64, Athlon 64 X2, Athlon 64 FX, Athlon II (followed by "X2", "X3", or "X4" to indicate the number of cores, and XLT models), Turion 64, Turion 64 X2, Sempron ("Palermo" E6 stepping and all "Manila" models), Phe…
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        • 64 bit - Wikipedia

          https://it.wikipedia.org/wiki/64_bit
          • Su 64 bit in codice binario si possono rappresentare 2 64 ≃ 18 , 44 × 10 18 {\displaystyle 2^{64}\simeq 18,44\times 10^{18}} numeri (anche intesi come informazioni). Benché una CPU possa essere a 64 bit internamente, il suo bus dati esterno o il bus indirizzi possono avere dimensioni differenti, maggiori o minori, e il termine viene spesso usato per indicare anche la di…
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          • 64-bit – Wikipédia

            https://sk.wikipedia.org/wiki/64-bit
            • Medzi 64-bitové procesory patria: 1. IBM PC kompatibilné počítače obsahujúce x86-64 procesory (architektúra počítača je však reálne obmedzená na len 48 alebo 52 bitov) 1.1. Intel: Pentium 4 (modely radu F, 5x1, 5x6 a 6xx), Pentium D, Pentium Extreme Edition, Celeron desktopové radu 3x1, 3x6 a 355 a nasl. a mobilné od modelu M 520, Xeon počínajúc modelom Nocona s výnimko…
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            • Processeur 64 bits — Wikipédia

              https://fr.wikipedia.org/wiki/Processeur_64_bits
              Image
              Les processeurs 32 bits ne peuvent normalement pas adresser plus de 4 Gio (232 octets) de mémoire centrale, tandis que les processeurs 64 bits peuvent en adresser 16 Eio (264 octets). C'est pourquoi dès qu'il y a plus de 4 Giode RAM sur une machine, la mémoire au-delà de ce seuil ne sera directement adressable qu'e…
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              • 64 bits - Wikipedia, la enciclopedia libre

                https://es.wikipedia.org/wiki/64_bits
                • Los microprocesadores de 64 bits han existido en las supercomputadoras desde 1960 y en servidores y estaciones de trabajo basadas en RISC desde mediados de los años 1990. En 2003 empezaron a ser introducidos masivamente en las computadoras personales (previamente de 32 bits) con las arquitecturas x86-64 y los procesadores PowerPC G5. Aunque una CPU puede ser i…
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                • 64-Bit-Architektur – Wikipedia

                  https://de.wikipedia.org/wiki/64-Bit-Architektur

                  Unter 64-Bit-Architektur versteht man in der EDV eine Prozessorarchitektur, deren Verarbeitungsbreite 64 Bit beträgt. Durch 64 Bit große Adressregister sind solche Prozessoren in der Lage, einzelnen Prozessen größere (nicht segmentierte) Adressräume als 4 GByte zur Verfügung zu stellen.. Einige Prozessoren unterstützen (aus Kompatibilitätsgründen) mehrere …

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