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Digital Computer Electronics

Digital Computer Electronics
A typical microcomputer may have up to 65,536 registers in its memory. Each of these registers, usually called a _____

address
memory location
None of these
chip
registers

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Digital Computer Electronics
The output 0 and 1 levels for TTL logic family is approximately

0.6 and 3.5 V
None of these
0.9 and 1.75V
-1.75 and -0.9 V
0.1 and 5 V

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Digital Computer Electronics
Conversion of an octal number 74328 to a binary number is

1111111110002
None of these
1111000110102
1100110101112
11110001101112

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Digital Computer Electronics
The clock signals are used in sequential logic circuits

to tell how much time has elapsed since the system was turned on
to tell the time of the day
to synchronize events in various parts of a system
None of these
to carry serial data signals

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Digital Computer Electronics
A 2's-complement adder-subtracter can add or subtract binary numbers. Sign-magnitude numbers represent _____ decimal numbers, and 2's complements stand for _____ decimal numbers.

sign, hexa
positive, negative
hexa, sign
None of these
negative, positive

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

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

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