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Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Describing Logic Circuits Questions
The symbol shown below is an AND gate.
In Boolean algebra, 1 · 0 = 0.
VHDL is not a new language.
A two-input NAND gate has inputs of 1 and 0; the output is 0.
The output of a NAND gate is the inverse of the output for an AND gate for all possible input combinations.
The commutative law of Boolean addition states that A + B = A · B.
Boolean algebra was first applied to the analysis of digital circuits by Claude Shannon at Stanford University.
Output logic levels for certain input conditions of a logic circuit may often be determined without using the Boolean expression.
The expressions, , are equivalent.
The application of DeMorgan's theorems to a Boolean expression with double and single inversions produces a resultant expression that contains only single inverter signs over single variables.
The OR gate performs like two switches wired in a series.
The truth table shown below describes the operation of a NOR gate.
The given figure shows the correct logic implementation of the distributive law.
Boolean multiplication is symbolized by A + B.
The comments in ADHL are enclosed between # characters.
The figure given below is an example of the implementation of AND-OR-INVERT logic.
In VHDL, local signals are declared in the VARIABLE section, which is placed between the SUBDESIGN section and the logic section.
NOR gates can be used to construct AND gates.
The SUBDESIGN section defines the input and output of the logic circuit block.
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