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Digital Electronics

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

 TRAP.
 RST 7.5.
 RST 6.5.
 INTR.

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Digital Electronics
AND operation of (79)10 & (-56)10 is

 08H
 50H
 48H
 42H

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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
 natural BCD
 octal
 hexadecimal

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Digital Electronics
The devices commonly used for making digital circuits are

 mechanical switches
 relays
 contact switches
 semiconductor devices

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Digital Electronics
When will be the output of an exclusive-OR gate is HIGH ?

 The inputs are equal
 The inputs are different
 All inputs are LOW
 All inputs are HIGH

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Digital Electronics
(11011) 2 in BCD 8421 code is

 01101100
 00100111
 00011011
 11011001

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