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Digital Computer Electronics

Digital Computer Electronics
Which function positive logic is equivalent to OR function in negative logic?

NOR
None of these
AND
OR
NOT

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Digital Computer Electronics
Conversion of decimal number 4210 to it's octal number equivalent is

578
428
478
None of these
528

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Digital Computer Electronics
The 2's compliment of binary number 010111.1100 is

None of these
101000.0011
10111.0011
101001.11
101000.01

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Digital Computer Electronics
Which of the following logic expression is wrong?

1 + 1 + 1 = 1
1+0+1 = 1
1 + 0=1
None of these
1 + 1=0

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Digital Computer Electronics
When an inverter is placed between both inputs of an SR flip-flop, the resulting flip-flop is

D flip-flop
None of these
Master slave JK flip-flop
JK flip-flop
T flip-flop

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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.

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

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