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Digital Electronics

Digital Electronics
If in a base b number system, 54/4=13, the base of the number is

 8
 7
 9
 6

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Digital Electronics
The only function of NOT gate is to ___________.

Invert input signal
None of these
Act as a universal gate
Stop signal

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Digital Electronics
A multiplexer is a combinational logic circuit used to perform the operation

 AND-AND
 XOR-NAND
 AND-OR
 NOR-OR

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Digital Electronics
Why generic array logic (GAL) device was invented ?

None of these
 One-time programmable
 Reprogrammable
 Mask programmable

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Digital Electronics
11001, 1001 and 111001 correspond to the 2’scomplement representation of the following set of numbers

 -7, -7 and -7 respectively
 25, 9 and 57 respectively
 -6, -6 and -6 respectively
 -25, -9 and -57 respectively

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Digital Electronics
An 8 × 4 ROM contains a decoder of size

 8 × 8
 3 × 8
 8 × 4
 3 × 4

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