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  2. Safe mode - Wikipedia

    en.wikipedia.org/wiki/Safe_mode

    Safe mode is a diagnostic mode of a computer operating system (OS). It can also refer to a mode of operation by application software . Safe mode is intended to help fix most, if not all, problems within an operating system.

  3. Table of keyboard shortcuts - Wikipedia

    en.wikipedia.org/wiki/Table_of_keyboard_shortcuts

    Ctrl+↵ Enter: ⇧ Shift+↵ Enter [notes 5] or Ctrl+↵ Enter or ⌥ Opt+↵ Enter [notes 5] (may be able to skip some editor-defined input processing) Ctrl+↵ Enter: Insert Unicode: Alt+X + character codepoint ⌥ Opt + character codepoint ("Unicode Hex Input" must be added and active as current input source) Ctrl+⇧ Shift+U + character ...

  4. Function key - Wikipedia

    en.wikipedia.org/wiki/Function_key

    Mac: The classic Mac OS supported system extensions known generally as FKEYS which could be installed in the System file and could be accessed with a Command-Shift-(number) keystroke combination (Command-Shift-3 was the screen capture function included with the system, and was installed as an FKEY); however, early Macintosh keyboards did not support numbered function keys in the normal sense.

  5. Break key - Wikipedia

    en.wikipedia.org/wiki/Break_key

    Break/Pause key on PC keyboard. The Break key (or the symbol ⎉) of a computer keyboard refers to breaking a telegraph circuit and originated with 19th century practice. In modern usage, the key has no well-defined purpose, but while this is the case, it can be used by software for miscellaneous tasks, such as to switch between multiple login sessions, to terminate a program, or to interrupt ...

  6. SafeCentral - AOL Help

    help.aol.com/products/safecentral

    Block hackers and identity thieves from stealing your personal information and passwords -- even if your PC is already infected with a virus or spyware.

  7. BIOS - Wikipedia

    en.wikipedia.org/wiki/BIOS

    In later computer systems, the BIOS contents are stored on flash memory so it can be rewritten without removing the chip from the motherboard. This allows easy, end-user updates to the BIOS firmware so new features can be added or bugs can be fixed, but it also creates a possibility for the computer to become infected with BIOS rootkits.

  8. Booting - Wikipedia

    en.wikipedia.org/wiki/Booting

    Most DSPs have a serial mode boot, and a parallel mode boot, such as the host port interface (HPI boot). In case of DSPs there is often a second microprocessor or microcontroller present in the system design, and this is responsible for overall system behavior, interrupt handling, dealing with external events, user interface, etc. while the DSP ...

  9. Dead man's switch - Wikipedia

    en.wikipedia.org/wiki/Dead_man's_switch

    The spacecraft may also enter a safe mode to protect itself while waiting for further commands. While having some similarities to a dead man's switch, this type of device (a command-loss timer) is not actually a dead man's switch, because it aims to recover from a hardware failure rather than the absence of human operators.