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Digital Computer Electronics

Digital Computer Electronics
Subtraction of 1001011002 from 11101010102 is

None of these
11110000012
1101000012
11110111112
10010111102

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Digital Computer Electronics
Cyclic codes are used in

data transfer
arithmetic and logical computation
All of these
continuously varying signal representation
None of these

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Digital Computer Electronics
The logic 1 in positive logic system is represented by:

negative voltage
None of these
zero voltage
higher voltage level
lower voltage level

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Digital Computer Electronics
The ASCII code is a 7-bit code for

letters
other symbols
None of these
numbers
All of these

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Digital Computer Electronics
Which of the following logic families has the highest noise immunity?

RTL
TTL
None of these
HTL
DTL

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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.

PROM
None of these
EPROM
RAM
ROM

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