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Digital Electronics

Digital Electronics
A gate is enabled when its enable input is at logic 1. The gate is

 none of these
 NOR
 OR
 NAND

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Digital Electronics
The code used in digital systems to represent decimal digits, letters, and other special characters such as + , – , . , * , etc. is

 ASCII
 hexadecimal
 natural BCD
 octal

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Digital Electronics
The code used for labeling the cells of a K-map is

 hexadecimal
 8-4-2-1 binary
 octal
 gray

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Digital Electronics
A signed integer has been stored in a byte using 2’scomplement format. We wish to store the same integer in 16-bit word. We should copy the original byte to the less significant byte of the word and fill the more significant byte with

 1
 0
 Equal to the MSB of the original byte
 Complement of the MSB of the original byte

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Digital Electronics
In MSI, the number of gate circuits per chip is

 12 to 99
 < 50
 50 to 100
 < 500

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Digital Electronics
In the boolean algebra, a variable has ________ different state(s)/value(s).

 2
 3
 1
 4

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