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  2. Table of keyboard shortcuts - Wikipedia

    en.wikipedia.org/wiki/Table_of_keyboard_shortcuts

    Ctrl+⇧ Shift+⌘ Cmd+4 then click+drag mouse over required area: Print Screen click+drag mouse over required area, then ↵ Enter : Ctrl+⇧ Shift+Show Windows then click+drag mouse over required area Screencasting Ctrl+Alt+⇧ Shift+R (GNOME [10] [11]) Ctrl+⇧ Shift+Show Windows then select the Screen Record button on the toolbar Screenshot ...

  3. Timeout (computing) - Wikipedia

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

    In the Microsoft Windows and ReactOS [2] command-line interfaces, the timeout command pauses the command processor for the specified number of seconds. [3] [4] In POP connections, the server will usually close a client connection after a certain period of inactivity (the timeout period). This ensures that connections do not persist forever, if ...

  4. Timeout Detection and Recovery - Wikipedia

    en.wikipedia.org/wiki/Timeout_Detection_and_Recovery

    Timeout Detection and Recovery or TDR is a feature of the Windows operating system (OS) introduced in Windows Vista. It detects response problems from a graphics card (GPU), and if a timeout occurs, the OS will attempt a card reset to recover a functional and responsive desktop environment .

  5. Two-phase commit protocol - Wikipedia

    en.wikipedia.org/wiki/Two-phase_commit_protocol

    D2PC is time optimal (among all the instances of a specific transaction tree, and any specific Tree 2PC protocol implementation; all instances have the same tree; each instance has a different node as coordinator): By choosing an optimal coordinator D2PC commits both the coordinator and each participant in minimum possible time, allowing the ...

  6. TCP congestion control - Wikipedia

    en.wikipedia.org/wiki/TCP_congestion_control

    The Tahoe algorithm first appeared in 4.3BSD-Tahoe (which was made to support the CCI Power 6/32 "Tahoe" minicomputer), and was later made available to non-AT&T licensees as part of the 4.3BSD Networking Release 1; this ensured its wide distribution and implementation. Improvements were made in 4.3BSD-Reno and subsequently released to the ...

  7. Time-out (sport) - Wikipedia

    en.wikipedia.org/wiki/Time-out_(sport)

    The use and rationing of time-outs is a major part of clock management strategy; calling time-out stops the clock (which normally is running between plays except in the case of a penalty, an incomplete pass, officials requiring time to re-spot the ball and/or down markers, or when the ball is run out of bounds), extending the time a team has to ...

  8. IP fragmentation - Wikipedia

    en.wikipedia.org/wiki/IP_fragmentation

    RFC 791 describes the procedure for IP fragmentation, and transmission and reassembly of IP packets. [1] RFC 815 describes a simplified reassembly algorithm. [2] The Identification field along with the foreign and local internet address and the protocol ID, and Fragment offset field along with Don't Fragment and More Fragments flags in the IP header are used for fragmentation and reassembly of ...

  9. Magic SysRq key - Wikipedia

    en.wikipedia.org/wiki/Magic_SysRq_key

    The magic SysRq key is a key combination understood by the Linux kernel, which allows the user to perform various low-level commands regardless of the system's state. It is often used to recover from freezes , or to reboot a computer without corrupting the filesystem . [ 1 ]