Digital Electronics - ECE Questions and Answers

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(FE35)₁₆ XOR (CB15)₁₆ is equal to

(3320)₁₆

(FE35)₁₆

(FF50)₁₆

(3520)₁₆

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If 4 in binary system is 100 then 8 will be

100

111

1000

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In the given figure A = 1, B = 1. B is now changed to a sequence 101010................The outputs X and Y will be

fixed at 0 and 1 respectively

X = 1010.......and Y = 0101........

X = 1010..........and Y = 1010

fixed at 1 and 0 respectively.

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The ALU carrier out arithmetic and logic operations (OR AND, NOT, etc.) it processes

decimal numbers

binary numbers

hexadecimal numbers

octal numbers

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The total number of fundamental products of three variables is

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As per Boolean algebra, inputs can be interchanged in

OR gates

AND gates

both OR and AND gates

none of the above

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Medium scale integration refers to ICs with

more than 12 but less than 30 gates on the same chip

more than 50 gates on the same chip

more than 20 but less than 100 gates on the same chip

more than 12 but less than 100 gates on the same chip

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The decimal equivalent of the hexadecimal number (3 E 8)₁₆ is

1000

982

768

323

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Four memory chips of 16 x 4 size have their address buses connected together. This system will be of size

64 x 4

16 x 16

32 x 8

256 x 1