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Digital Computer Electronics

Digital Computer Electronics
An OR gate has 6 inputs. What is the only input word that produces a 0 output?

111000
111111
111
None of these

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Digital Computer Electronics
An AND gate has 7 inputs, what is the only input word that produces a 1 output?

None of these
1111111
1111
1110000

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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, register
light, eight, clock
bits, one, clock

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Digital Computer Electronics
The control and arithmetic-logic sections are called the _____

Control Unit
None of these
Central Processing Unit
Input / Output Unit
Block diagram

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Digital Computer Electronics
What is the 2's-complement representation of -24 in a 16-bit microcomputer?

None of these
0001 0001 1111 0011
1111 1111 1110 0111
0000 0000 0001 1000
1111 1111 1110 1000

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Digital Computer Electronics
Semiconductor memory is:

somewhat slower than magnetic core memory
All of these
None of these
a volatile memory
somewhat larger than the magnetic core memory

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