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Digital Electronics

Digital Electronics
If 4 input MUXes drive a 4 input multiplexer, it results a

 16 input MUX
 6 input MUX
 4 input MUX
 8 input MUX

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Digital Electronics
When will be the output of an AND gate is LOW ?

 When any input is HIGH
 When any input is LOW
 When all inputs are HIGH
 When all input is LOW

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Digital Electronics
The simplified block diagram of a 10-bit A/D converter of dual slope integrator type is shown in figure. The 10-bit counter at the output is clocked by a 1 Mhz clock. Assuming negligible timing overhead for the control logic, the maximum frequency of the analog signal that can be converted using this A/D converted is approximately .

 500 Hz.
 2 KHz.
 250 Hz.
  1 KHz.

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Digital Electronics
For checking the parity of a digital word, it is preferable to use

 NAND gates
 X-OR gates
 AND gates
 NOR gates

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Digital Electronics
(11011) 2 in BCD 8421 code is

 01101100
 11011001
 00011011
 00100111

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Digital Electronics
Which one of the following is not a vectored interrupt?

 RST 7.5.
 TRAP.
 INTR.
 RST 6.5.

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