Digital Electronics - ECE Questions and Answers

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The number of comparator circuits required to build a three-bit simultaneous A/D converter is

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-8 is equal to signed binary number

10001000

00001000

10000000

11000000

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Assume that only x and y logic inputs are available. What is the minimum number of 2-input NAND gates required to implement x ⊕ y?

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The parity bit is

always 1

always 0

1 or 0

none of the above

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In 2's complement representation, a certain negative number - N is 1011. The representation for + N is

0100

0101

0110

0011

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In 8355, the ROM is organized as __________ words of 8 bits each.

2000

2048

8355

835

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What binary number does second row represent?

01111001

01010101

10101010

11101010

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In C-language f- = 9 is equivalent to

f = -9

f = f - 9

f = 9 - 1

-f = 9

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Effective address is calculated by adding or subtracting displacement value to

immediate address

Relative address

absolute address

base address