SWITCHING THEORY & LOGIC DESIGN
1. A
group of four bits is known as nibble.
2. The
number system with radix 2 is known as binary.
3. The
base or radix a Hexadecimal number system is 16.
4.
A
half-adder can be constructed using 2 two input logic gates one of them is
AND gate the other is OR gate.
5. Hamming code
is the most
efficient method for detecting and correcting codes.
6.
3
to 8 decoder is the size of the decoder required to implement 3 Variable
Boolean Function.
7. Gray code
is used in k-map to
represent the data.
8.
Sequential PLD, Complex PLD, FPGA
are
the 3 types of
sequential programmable devices.
9.
JQ~+K~Q is the characteristic equation for JK F-F.
10.
Write
about latches?
Ans: The most basic types
of F-Fs operate with signal levels and are referred to as latches.
11. Define F-F s?
Ans:
The storage elements used in clocked sequential circuits
are called flip-flops.
12. What
is the principle of duality?
Ans: Any theorem or Identity in switching algebra remains true if 0
and 1 are swapped and are swapped throughout.
13. What is the
difference between mealy model and Moore model?
Ans: In
the Malay model, the output is a function of both the present state and input. In
the Moore model, the output is a function of the present state only.
14. 74
X 283 is a 4 bit
binary adder.
15.
74 X 138 has 3 enable inputs.
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