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DIGITAL COMPUTER ELECTRONICS

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.

ROM
EPROM
None of these
RAM
PROM

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

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

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Digital Computer Electronics
Conversion of decimal number 9910 to it's binary number equivalent is

1000112
None of these
11100012
11000112
111 10002

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Digital Computer Electronics
The number of two-input NAND gates required to produce the two-input OR function is

2
4
1
3
None of these

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

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