Active-LOW: An output of a logic circuit that is LOW when activated, or an input that needs to be LOW to be activated. Adjacent Cell: Cells within a Karnaugh map that border each other on one side or the top or bottom of the cell. AND-OR-INVERT (AOI) Gate: An integrated circuit containing combinational logic consisting of several AND gates feeding into an OR gate and then an inverter. It is used to implement logic equations in the SOP format. Boolean Reduction: An algebraic technique that follows specific rules to convert a Boolean equation into a simpler form. Cell: Each box within a Karnaugh map. Each cell corresponds to a particular combination of input variable logic levels. Combinational Logic: Logic circuits formed by combining several of the basic logic gates to form a more complex function. De Morgan,s Theorem: A Boolean law used for equation reduction that allows the user to convert an equation having an inversion bar over several variables into an equivalent equation having inversion bars over single variables only. Do not Care: A variable appearing in a truth table or timing waveform that will have no effect on the final output regardless of the logic level of the variable. Therefore, do not-care variables can be ignored. Equivalent Circuit: A simplified version of a logic circuit that can be used to perform the exact logic function of the original complex circuit. Inversion Bubbles: The bubble (or circle) can appear at the input or output of a logic gate. It indicates inversion (1 becomes 0; 0 becomes 1). Karnaugh Map: A two-dimensional table of Boolean output levels used as a tool to perform a systematic reduction of complex logic circuits into simplified equivalent circuits. Product-of-Sums (POS) Form: A Boolean equation in the form of a group of ORed variables ANDed with another group of ORed variables (e.q., X = (A + /B + C)(B + D)(/A + /C)). Redundancy: Once all filled-in cells in a Karnaugh map are contained within a circle, the final simplified equation can be written. Drawing another circle around a different group of cells is needless (redundant). Sum-of-Products (SOP) Form: A Boolean equation in the form of a group of ANDed variables ORed with another group of ANDed variables (e.q., X = ABC + /BDE +/A/D). Universal Gates: The NOR and NAND logic gates are sometimes called universal gates because any of the other logic gates can be formed from them. Wraparound: The left and fight cells and the top and bottom cells of a Karnaugh map are actually adjacent to each other by means of the wraparound feature. 麻烦各位大大帮我翻一下....试过用翻译软体，但是它都照字面翻 有些专业名词它都乱翻，小弟英文太差，看不懂....麻烦各位了 谢谢 我已经有在英文版po了 但是怕不懂数位逻辑的人看不懂 所以来逻辑版popo看 帮个忙 谢谢 --

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