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  2. Apache Spark - Wikipedia

    en.wikipedia.org/wiki/Apache_Spark

    Spark Core is the foundation of the overall project. It provides distributed task dispatching, scheduling, and basic I/O functionalities, exposed through an application programming interface (for Java, Python, Scala, .NET [16] and R) centered on the RDD abstraction (the Java API is available for other JVM languages, but is also usable for some other non-JVM languages that can connect to the ...

  3. Timestamping (computing) - Wikipedia

    en.wikipedia.org/wiki/Timestamping_(computing)

    In computing, timestamping refers to the use of an electronic timestamp to provide a temporal order among a set of events. Timestamping techniques are used in a variety of computing fields, from network management and computer security to concurrency control .

  4. MAC times - Wikipedia

    en.wikipedia.org/wiki/MAC_times

    MAC times are pieces of file system metadata which record when certain events pertaining to a computer file occurred most recently. The events are usually described as "modification" (the data in the file was modified), "access" (some part of the file was read), and "metadata change" (the file's permissions or ownership were modified), although the acronym is derived from the "mtime", "atime ...

  5. Timestamp - Wikipedia

    en.wikipedia.org/wiki/Timestamp

    Some file archivers and some version control software, when they copy a file from some remote computer to the local computer, adjust the timestamps of the local file to show the date/time in the past when that file was created or modified on that remote computer, rather than the date/time when that file was copied to the local computer.

  6. Unix time - Wikipedia

    en.wikipedia.org/wiki/Unix_time

    APFS, the file system used by default across all Apple devices, and ext4, which is widely used on Linux and Android devices, both use Unix time in nanoseconds for file timestamps. [ 25 ] [ 26 ] Several archive file formats can store timestamps in Unix time, including RAR and tar .

  7. Presentation timestamp - Wikipedia

    en.wikipedia.org/wiki/Presentation_timestamp

    Presentation time stamps have a resolution of 90kHz, suitable for the presentation synchronization task. The PCR or SCR has a resolution of 27MHz which is suitable for synchronization of a decoder's overall clock with that of the usual remote encoder, including driving TV signals such as frame and line sync timing, colour sub carrier, etc. [ 1 ]

  8. Windows 10, version 21H1 - Wikipedia

    en.wikipedia.org/wiki/Windows_10,_version_21H1

    The Windows 10 May 2021 Update [1] (codenamed "21H1" [2]) is the eleventh major update to Windows 10. It carries the build number 10.0.19043. It carries the build number 10.0.19043. Version history