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Digital Electronics

Digital Electronics
Which of the following logic circuits is the fastest ?

 All have same speed.
 TTL.
 RTL.
 DTL.

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Digital Electronics
The codes in which each successive code word differs from the preceding one in only one bit position are called

 self-complementing codes
 cyclic codes
 sequential codes
 BCD codes

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Digital Electronics
2's Complement of 10101011 is

 01010101
 10101011
 00111100
 10101100

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Digital Electronics
Which of the following codes is known as the 8421 code?

 ASCII code
 Gray code
 BCD code
 XS-3 code

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Digital Electronics
Positive integers must be represented by

 None of these
 unsigned number
 Both A and B
 signed numbers

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Digital Electronics
A 32 × 10 ROM contains a decoder of size

 10 × 32
 5 × 32
 32 × 32
 32 × 10

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