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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. It is also widely used for removing rogue security software.

  3. Why am I asked to verify my account after signing in?

    help.aol.com/articles/why-am-i-asked-to-verify...

    If there's something unusual about your sign in or recent activity, we'll ask you to go through another verification step after you've entered the correct password. This is an important security feature that helps to protect your account from unauthorized access.

  4. Comparison of relational database management systems - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_relational...

    Informix supports a database mode called ANSI mode which supports creating objects with the same name but owned by different users. PostgreSQL and some other databases have support for foreign schemas, which is the ability to import schemas from other servers as defined in ISO/IEC 9075-9 (published as part of SQL:2008). This appears like any ...

  5. PHP - Wikipedia

    en.wikipedia.org/wiki/PHP

    Namespace support; late static bindings, jump label (limited goto), anonymous functions, closures, PHP archives (phar), garbage collection for circular references, improved Windows support, sqlite3, mysqlnd as a replacement for libmysql as the underlying library for the extensions that work with MySQL, fileinfo as a replacement for mime_magic ...

  6. Black screen of death - Wikipedia

    en.wikipedia.org/wiki/Black_screen_of_death

    Rarely an experienced user would reinstall Windows. In the case of the former, the boot loader will most likely inform the user the name of the missing file, allowing for the user to supply and/or reinstall the missing files to resolve the boot problem. In the case of the latter, however, the computer will not be able to boot, even into safe mode.

  7. RC4 - Wikipedia

    en.wikipedia.org/wiki/RC4

    RC4 was designed by Ron Rivest of RSA Security in 1987. While it is officially termed "Rivest Cipher 4", the RC acronym is alternatively understood to stand for "Ron's Code" [9] (see also RC2, RC5 and RC6).

  8. HTTP cookie - Wikipedia

    en.wikipedia.org/wiki/HTTP_cookie

    HTTP cookies share their name with a popular baked treat.. The term cookie was coined by web-browser programmer Lou Montulli.It was derived from the term magic cookie, which is a packet of data a program receives and sends back unchanged, used by Unix programmers.

  9. Finite-state machine - Wikipedia

    en.wikipedia.org/wiki/Finite-state_machine

    After the customer passes through, the arms are locked again until another coin is inserted. Considered as a state machine, the turnstile has two possible states: Locked and Unlocked . [ 4 ] There are two possible inputs that affect its state: putting a coin in the slot ( coin ) and pushing the arm ( push ).