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13 Cards in this Set
- Front
- Back
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1’s Complement
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A form of signed binary notation in which negative numbers are created by complementing all bits of a number, including the sign bit.
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2’s Complement
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A form of signed binary notation in which negative numbers are created by adding 1 to the 1’s complement form of the number.
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De-multiplexer
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A circuit that uses a binary decoder to direct a digital signal from a single source to one of several destinations.
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Encoder
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A digital circuit that produces an output code depending on which of its inputs is activated.
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Exclusive-NOR (XNOR) Circuit
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Two-input logic circuit that produces a high output only when the inputs are equal.
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Exclusive-OR (XOR) Circuit
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Two-input logic circuit that produces a high output only when the inputs are different.
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Full Adder
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Logic circuit with three inputs and two outputs. The inputs are a carry bit (CIN) from a previous stage, a bit from the augend, and a bit from the addend, respectively. The outputs are the sum bit and the carry-out bit (COUT) produced by the addition of the bit from the addend with the bit from the augend and CIN.
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Half Adder
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Logic circuit with two inputs and two outputs. The inputs are a bit from the augend and a bit from the addend. The outputs are the sum bit produced by the addition of the bit from the addend with the bit from the augend and the resulting carry (COUT) bit, which will be added to the next stage.
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Hexadecimal Number System
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Base-16 number system. Hexadecimal numbers are written with sixteen digits, 0-9 and A-F, with power-of-16 positional multipliers.
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Multiplexer
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A circuit that directs one of several digital signals to a single output, depending on the states of several select inputs.
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Octal Number System
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A number system that has a base of 8; digits from 0 to 7 are used to express an octal number.
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Sign Bit
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A binary bit that is added to the leftmost position of a binary number to indicate whether that number represents a positive or a negative quantity.
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Signed Binary Number
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A binary number of fixed length whose sign is represented by one bit, usually the most significant bit, and whose magnitude is represented by the remaining bits.
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