Logic-Families

Question 1
The following diagram depicts ____ logic
A
Diode
B
Transistor
C
Diode transistor
D
Resistor
       Digital-Logic-Design       Logic-Families       KVS DEC-2013
Question 1 Explanation: 
The given diagram is combination of both Diode and Transistor
Question 2
Based on the current technology,___ is the fastest logic family
A
CMOS
B
TTL
C
MOS
D
ECL
       Digital-Logic-Design       Logic-Families       KVS DEC-2017
Question 2 Explanation: 
Question 3
When used with IC, what does he term QUAD indicate?
A
2 circuits
B
4 circuits
C
6 circuits
D
8 circuits
       Digital-Logic-Design       Logic-Families       KVS 30-12-2018 Part B
Question 3 Explanation: 
→A quad gate is an IC (integrated circuit or chip) containing four logic gates. The gates can be of any type: AND, OR, XOR, NOT, NAND, NOR, and XNOR. Within any given quad gate, all four of the individual gates are normally of the same type.
→A logic gate is an elementary building block of a digital circuit.
Question 4
When a tri - state logic device is in the third state, then :
A
it draws low current
B
it does not draw any current
C
it draws very high current
D
it presents a low impedance
       Digital-Logic-Design       Logic-Families       UGC NET CS 2004 Dec-Paper-2
Question 4 Explanation: 
Three Stage logic name itself implies there are 3 states of the buffer.
1. High (1)
2. Low (0)
3. High Impedance (Z)
→ High impedance means that a point in a circuit (a node) allows a relatively small amount of current through, per unit of applied voltage at that point.
→ High impedance circuits are low current, high voltage, whereas low impedance circuits are the opposite.
Truth table of Tri-state logic Inverter
There are 4 questions to complete.

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