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Digital Electronics

Digital Electronics
A half adder is a ________ circuit.

 Sequential
 Both A and B
 None
 Combinational

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Digital Electronics
In binary number system the first digit (bit) from right to left is called as

 First Bit
 MSB, Most Significant Bit
 Last Bit
 LSB, Least Significant Bit

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Digital Electronics
Which one of the following even parity codes are in errors. (I)100110010 (II)011101010 (III)10111111010001010

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

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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

 natural BCD
 octal
 hexadecimal
 ASCII

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Digital Electronics
In a read-only memory information can be stored

 in any of the above ways depending upon the type of memory
 by the user a number of times
 at the time of fabrication
 by the user only once during its life time

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Digital Electronics
A self-complementing code for the decimal digits is created using the weight 4 4 3 -2. The value of 8592 in the code is

 1100 1011 1111 1001
 1100 0111 1111 0011
 1000 0101 1001 0010
 1100 1001 1111 1000

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