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Digital Electronics

Digital Electronics
The boolean algebra is mostly based on

 De Morgans theorem
 Boolean theorem
 Standard theorem
 De Morpans theorem

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Digital Electronics
Choose the option which is not a code conversion standard

 BCD code
 Truth code
 Excess-3 code
 Gray code

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Digital Electronics
A computer has a word length of 8 bits (including sign). It is required to determine the range of integers that can be stored in the computer. If 2’s complement is used to represent the numbers, then the range will be

 -128 to 128
 -256 to 255
 -256 to 256
 -128 to 127

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Digital Electronics
The fan put of a 7400 NAND gate is

10TTL
8TTL
2TTL
5TTL

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Digital Electronics
Which is the correct order of sequence for representing the input values in K-map?

(00, 01, 11, 10)
(00, 10, 01, 11)
(00, 01, 10, 11)
(00, 10, 11, 01)

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

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