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Digital Computer Electronics

Digital Computer Electronics
Conversion of an octal number 1348 to a binary number is

1100112
10110112
None of these
11011002
10111002

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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.

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

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Digital Computer Electronics
Multiplication of 478 by 528 is

(3184)8
(3144)8
(3146)8
(4147)8
None of these

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Digital Computer Electronics
A gate is a logic circuit with one or more input signals but _____ output signal.

more than one
None of these
double
two
one

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Digital Computer Electronics
What logic function is produced by adding an inverter to the output of an AND gate?

NAND
OR
NOR
None of these
XOR

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Digital Computer Electronics
The 7400 series, also called standard TTL, contains a variety of SSI and _____ chips that allow us to build all kinds of digital circuits and systems.

MOSFET
MOS
MSI
LSI
None of these

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