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  2. 255 (number) - Wikipedia

    en.wikipedia.org/wiki/255_(number)

    255 is a special number in some tasks having to do with computing. This is the maximum value representable by an eight-digit binary number, and therefore the maximum representable by an unsigned 8-bit byte (the most common size of byte, also called an octet), the smallest common variable size used in high level programming languages (bit being smaller, but rarely used for value storage).

  3. Alt code - Wikipedia

    en.wikipedia.org/wiki/Alt_code

    The familiar Alt+### combination (where ### is from 0 to 255) retains the old MS-DOS behavior, i.e., generates characters from the legacy code pages now called "OEM code pages." For instance, the combination Alt + 1 6 3 would result in ú (Latin letter u with acute accent ) which is at 163 in the OEM code page of CP437 or CP850. [ 2 ]

  4. Table of keyboard shortcuts - Wikipedia

    en.wikipedia.org/wiki/Table_of_keyboard_shortcuts

    Place computer into sleep/standby mode Windows 10: ⊞ Win+x > u > s. Windows 7: ⊞ Win+→+→+↵ Enter. Sleep (available on some keyboards) ⌥ Opt+⌘ Cmd+Eject: Sleep (available on some keyboards, configurable in Control Panel Power Options Advanced tab dialog box) Shut down computer Windows 10: ⊞ Win+x > u > u: Ctrl+⌥ Opt+⌘ Cmd+Eject

  5. Telnet - Wikipedia

    en.wikipedia.org/wiki/Telnet

    (0xff, or 255 in decimal, is the IAC byte (Interpret As Command) which signals that the next byte is a telnet command. The command to insert 0xff into the stream is 0xff, so 0xff must be escaped by doubling it when sending data over the telnet protocol.) [3]

  6. Exit status - Wikipedia

    en.wikipedia.org/wiki/Exit_status

    Exit codes are directly referenced, for example, by the command line interpreter CMD.exe in the errorlevel terminology inherited from DOS. The .NET Framework processes and the Windows PowerShell refer to it as the ExitCode property of the Process object.

  7. 47 Gmail Keyboard Shortcuts to Start Using Today - AOL

    www.aol.com/47-gmail-keyboard-shortcuts-start...

    COMMAND. ACTION. O or Enter. Open conversation. Shift + I. Mark as read. Shift + U. Mark as unread. Z. Undo last action. E. Archive] or [Archive conversation and go to previous/next

  8. Time to live - Wikipedia

    en.wikipedia.org/wiki/Time_to_live

    The maximum TTL value is 255, the maximum value of a single octet. A recommended initial value is 64. [2] [3] The time-to-live value can be thought of as an upper bound on the time that an IP datagram can exist in an Internet system. The TTL field is set by the sender of the datagram, and reduced by every router on the route to its destination.

  9. INT (x86 instruction) - Wikipedia

    en.wikipedia.org/wiki/INT_(x86_instruction)

    INT is an assembly language instruction for x86 processors that generates a software interrupt.It takes the interrupt number formatted as a byte value. [1]When written in assembly language, the instruction is written like this: