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Digital Computer Electronics

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

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

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Digital Computer Electronics
Conversion of binary number 10010012 to hexadecimal is

3916
4216
None of these
4916
4016

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Digital Computer Electronics
What is the hexadecimal equivalent of a binary number 10101111

None of these
9E
8C
AF
All of these

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Digital Computer Electronics
What is the 2's complement of 0011 0101 1001 1100 number?

1100 1010 0110 0100
1100 1010 1100 1011
None of these
1100 1010 0110 0011
1100 1010 1111 1111

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Digital Computer Electronics
The _____ is ultraviolet-light-erasable and electrically programmable. This allows the user to erase and store until programs and data are perfected.

RAM
EPROM
ROM
None of these
PROM

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Digital Computer Electronics
ASCII and EBCDIC differ in

their efficiency in storing data
the random and sequential access method
None of these
the number of bytes used to store characters
their collecting sequences

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