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  2. Undo - Wikipedia

    en.wikipedia.org/wiki/Undo

    Undo is an interaction technique which is implemented in many computer programs. It erases the last change done to the document, reverting it to an older state. In some more advanced programs, such as graphic processing, undo will negate the last command done to the file being edited.

  3. Inverter (logic gate) - Wikipedia

    en.wikipedia.org/wiki/Inverter_(logic_gate)

    An inverter circuit outputs a voltage representing the opposite logic-level to its input. Its main function is to invert the input signal applied. If the applied input is low then the output becomes high and vice versa. Inverters can be constructed using a single NMOS transistor or a single PMOS transistor coupled with a resistor. Since this ...

  4. Inverse consequences - Wikipedia

    en.wikipedia.org/wiki/Inverse_consequences

    The term "inverse consequences" has been in use for over 175 years (since at least 1835). [1] The term was also used by Auguste Comte (1798–1857) in his book System of Positive Polity (published 1875), stating, "Inevitable increase in Complication, in proportion with the decrease of Generality, gives rise to two inverse consequences."

  5. Black box - Wikipedia

    en.wikipedia.org/wiki/Black_box

    The opposite of a black box is a system where the inner components or logic are available for inspection, which is most commonly referred to as a white box (sometimes also known as a "clear box" or a "glass box").

  6. List of military strategies and concepts - Wikipedia

    en.wikipedia.org/wiki/List_of_military...

    Tactic is usually implemented through surging at the enemy after their attack. Counterforce – A strategy used in nuclear warfare of targeting military infrastructure (as opposed to civilian targets) Countervalue – The opposite of counterforce; targeting of enemy cities and civilian populations. Used to distract the enemy.

  7. NAND logic - Wikipedia

    en.wikipedia.org/wiki/NAND_logic

    A CMOS transistor NAND element. V dd denotes positive voltage.. In CMOS logic, if both of the A and B inputs are high, then both the NMOS transistors (bottom half of the diagram) will conduct, neither of the PMOS transistors (top half) will conduct, and a conductive path will be established between the output and Vss (ground), bringing the output low.

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Parallel running - Wikipedia

    en.wikipedia.org/wiki/Parallel_running

    The cost of implementation is very expensive because of the need to operate the two systems at the same time. [8] It is a great expense in terms of electricity and operation costs. This would be prohibitive with a large and complex system. [9] [10] Parallel running implementation also requires a lot of time and needs frequent maintenance. This ...