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Digital Computer Electronics

Digital Computer Electronics
Which of the following Boolean algebra rules is wrong?

A + A = A
1 + A = 1
0 + A = A
1 . x = 1
None of these

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Digital Computer Electronics
Conversion of an octal number 1438 to its decimal number is

97110
10710
9910
None of these
9010

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Digital Computer Electronics
The main advantage of hexadecimal numbers is the case of conversion from hexadecimal to _____ and vice versa.

None of these
BCD
binary
decimal
ASCE

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Digital Computer Electronics
A shift register moves the _____ left or right. Serial loading means storing a word in a shift register by entering _____ bit per clock pulse. With parallel or broadside loading, it takes only one _____ pulse to load the input word.

bits, one, clock
right, eight, clock
bits, one, register
light, eight, clock
None of these

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Digital Computer Electronics
The leading bit stands for the _____ and the remaining bits for the _____ is known as signed binary numbers.

sign, magnitude
value, sign
None of these
sign, remainder
variable, value

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Digital Computer Electronics
Conversion of binary number 1011102 to an octal number is

None of these
508
468
568
358

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