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Digital Electronics

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

 RTL.
 All have same speed.
 DTL.
 TTL.

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Digital Electronics
The output of a gate is HIGH if and only if all its inputs are LOW. It is true for

 NOR
 X-OR
 X-NOR
 NAND

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Digital Electronics
The main equation for a D flip flop is

 Q=D
 Q=0
 Q=1
 Q=D'

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Digital Electronics
(1D)16 in BCD 8421 code is

 00011101
 00101001
 00011111
 00100100

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Digital Electronics
Four ROM chips of 16 × 4 size have their address buses connected together. This system will be of size

 256 × 1
 32 × 8
 16 × 16
 64 × 4

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Digital Electronics
A byte is equal to ________ bits.

 16
 32
 8
 4

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