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Digital Electronics

Digital Electronics
Slowest memory element is

 Cache
 RAM
 ROM
 Hard Drive

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Digital Electronics
Which of the following operations is commutative but not associative?

 NAND
 X-OR
 AND
 OR

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Digital Electronics
Which one of the following is correct sequence of the numbers represented in the series(2)3, (10)4, (11)5, (14)6, (22)7,…………….

 2, 4, 6, 10, 16……..
 2, 3, 4, 5, 6, ….
 2, 4, 6, 8, 10, …..
 2, 4, 6, 10, 12, …

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Digital Electronics
Which of the following BCD codes with an odd parity bit included in the end of code group, have error in the code? (I)1001010110000 (II)0100011101100 (III)0111110000011 (IV)1000011000101

 Both (I) & (II)
 Both (I)&(IV)
 Both (II)&(III)
 Only (II)

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Digital Electronics
In decimal number system what is MSD

 Mean of all digits
 First digit from right to left
 First digit from left to right
 Middle digit

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Digital Electronics
The following code is not a BCD code.

 XS-3 code
 8421 code
 all of these
 Gray code

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MORE MCQ ON Digital Electronics

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