# Shared Flashcard Set

## Details

Digital
final exam
31
Engineering
05/09/2013

Term
 1's Complement
Definition
 A form of signed binary notation in which negative numbers are created by complementing all bits of a number, including the sign bit
Term
 2's Complement
Definition
 A form of signed binary notation in which negative numbers are created by adding 1 to the 1’s complement form of the
Term
 555 Timer
Definition
 TTL-compatible IC that can be wired to operate in several different modes, such as a one-shot and an astable multivibrator.
Term
Definition
 Two cells in a K-map are adjacent if there is only one variable that is different between the coordinates of the two cells.
Term
 Amplitude
Definition
 The instantaneous voltage of a waveform. Often used to mean maximum amplitude, or peak voltage, or a pulse.
Term
 Analog
Definition

 A way of representing some physical quantity, such as temperature or velocity, by a proportional continuous voltage or current. An analog voltage or current can have any value within a defined range.

Term
 AND Gate
Definition
 Digital circuit that implements the AND operation. The output of this circuit is HIGH only if all of its inputs are HIGH.
Term
 Associative Property
Definition
 A mathematical function is associative if its operands can be grouped in any order without affecting the result. For example, addition is associative ((a+b) + c = a + (b+c)), but subtraction is not ((a-b) –c ≠ a-(b-c)).
Term
 Asynchronous Counter
Definition
 Type of counter in which each flip-flop output serves as the clock input signal for the next flip-flop in the chain.
Term
 Asynchronous Inputs
Definition
 Flip-flop inputs that can affect the operation of the flip-flop independent of the synchronous and clock inputs.
Term
 Atom
Definition
 The smallest particle of an element that still has the same characteristics as the element.
Term
 BASIC
Definition
 Beginners' All-purpose Symbolic Instruction Code.
Term
 BIN
Definition
 Modifier in PBASIC that designates a variable as being a binary bit.
Term
 Binary Counter
Definition
 Group of flip-flops connected in a special arrangement in which the states of the flip-flops represent the binary number equivalent to the number of pulses that have occurred at the input of the counter.
Term
 Binary Number System
Definition
 A number system used extensively in digital systems, based on the number 2. It uses two digits to write any number.
Term
 Bit
Definition
 Smallest number in binary. Can only have the value of 0 or 1.
Term
 Boolean Algebra
Definition
 Algebraic process used as a tool in the design and analysis of digital systems.  In Boolean algebra only two values are possible, 0 and 1.
Term
 Boolean Expression
Definition
 An algebraic expression made up of Boolean variables and operators, such as AND (-), OR (+), or NOT (-). Also referred to as Boolean function or a logic function.
Term
 Boolean Theorems
Definition
 Rules that can be applied to Boolean algebra to simplify logic expressions.
Term
 Boolean Variable
Definition
 A variable having only two possible values, such as HIGH/LOW, 1/0, On/Off, or True/False.
Term
Definition
 A circuit board for wiring temporary circuits, usually used for prototypes or laboratory work.
Term
 Bubble
Definition
 A circle in a state diagram containing the state name and values of the state variables.
Term
 Byte
Definition
 8 bits. Can have values in range from 0 to 255.
Term
 Word
Definition
 16 bits. Can have values from 0 to 65,535.
Term
 Up/Down Counter
Definition
 Counter that can count up or down depending on how its inputs are activated.
Term
 Up Counter
Definition
 Counter that counts upward from 0 to a maximum count.
Term
 Capacitor
Definition
 An electrical device used to store electrical charge.
Term
 Cell
Definition
 The smallest unit of Karnaugh map, corresponding to one line of a truth table. The input variables are the cell’s coordinates and the output variable is the cell’s contents.
Term
 Clock
Definition
 Digital signal in the form of a rectangular pulse train or a square wave.
Term
 Clocked D Flip-Flop
Definition
 Type of flip-flop in which the D (data) input is the synchronous input.
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