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Digital Electronics

Digital Electronics
The number of 1 in 8-bit representation of 127 in 2’s complement form is m and that in 1,s complement form is n. What is the value of m:n?

 2:3
 1:2
 1:1
 2:1

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Digital Electronics
How many numbers are used in the decimal number system?

 0 to 10
 0 to 9
None of these
 1 to 10

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Digital Electronics
A graphical representation of a products in a truth table is called as

 T-Map
 Mapping
 K-Map
 Graphing

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Digital Electronics
Extremely low power dissipation per gate can be gained from

 ECL ICs
 MOS ICs
 TTL ICs
 CMOS ICs

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Digital Electronics
The AND-OR realization of a combinational circuit requires three 3-input AND gates and one 3-input OR gate. This circuit can be designed using

 three 3-input OR gates and one 3-input AND gate
None of these
 four input NAND gates only
 three 3-input NAND gates and one 3-input NOR gate

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Digital Electronics
Consider the operation 24+17 = 40 .What is the correct base of number so that operation is correct?

 13
 11
 12
 10

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