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  2. 64-bit computing - Wikipedia

    en.wikipedia.org/wiki/64-bit_computing

    In computer architecture, 64-bit integers, memory addresses, or other data units [a] are those that are 64 bits wide. Also, 64-bit central processing units (CPU) and arithmetic logic units (ALU) are those that are based on processor registers, address buses, or data buses of that size. A computer that uses such a processor is a 64-bit computer.

  3. x86-64 - Wikipedia

    en.wikipedia.org/wiki/X86-64

    A 32-bit kernel can also be manually selected, in which case only 32-bit executables will run. The isainfo command can be used to determine if a system is running a 64-bit kernel. For Solaris 11, only the 64-bit kernel is provided. However, the 64-bit kernel supports both 32- and 64-bit executables, libraries, and system calls.

  4. Year 2038 problem - Wikipedia

    en.wikipedia.org/wiki/Year_2038_problem

    Starting with Ruby version 1.9.2 (released on 18 August 2010), the bug with year 2038 is fixed, [16] by storing time in a signed 64-bit integer on systems with 32-bit time_t. [17] Starting with NetBSD version 6.0 (released in October 2012), the NetBSD operating system uses a 64-bit time_t for both 32-bit and 64-bit

  5. List of operating systems - Wikipedia

    en.wikipedia.org/wiki/List_of_operating_systems

    This is a list of operating systems. Computer operating ... (latest version of the four decades old DOS lineage, supports 64-bit ... mostly 8-bit systems, ...

  6. Cray-1 - Wikipedia

    en.wikipedia.org/wiki/Cray-1

    The Cray-1 was built as a 64-bit system, a departure from the 7600/6600, which were 60-bit machines (a change was also planned for the 8600). Addressing was 24-bit, with a maximum of 1,048,576 64-bit words (1 megaword) of main memory, where each word also had eight parity bits for a total of 72 bits per word. [12]

  7. How to upgrade from 32-bit to 64-bit version of Windows 10 - AOL

    www.aol.com/news/upgrade-32-bit-64-bit-212659036...

    However, if it reads "32-bit operating system, x86-based processor," the computer does not support the 64-bit version of Windows. If the device can't run the 64-bit version, consider purchasing a ...