Tutorial 3 sol

# Tutorial 3 sol - EE 2000 Logic Circuit Design Semester A...

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EE 2000 Logic Circuit Design, Semester A, 2007/08 Tutorial 3 The questions are divided into two levels. Level 1 is the basic level question. You should be able to answer them after completing the lecture. Level 2 is the advanced level question. You may have to take a research before answering them. Please be prepared before the tutorial. Level 1 Question 1: Can you tell the meaning of “1001” if it is a (a) Decimal number (b) Binary number (c) Octal number (d) Hexadecimal number (e) 4-bit 2’s complement number (f) BCD 8421 code (g) BCD 2421 code (h) Excess-3 code Ans: The corresponding decimal values are: (a) 1001 (one thousand and one) (b) 9 (c) 513 (d) 4097 (e) -7 (f) 9 (g) No this codeword (h) 6

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Question 2: To verify if the functions are equal by using truth table xy ’ + x z ’ + x y = ( x ’ + y ’)( x + y + z ’)? x y z x’ y’ z’ xy’ x’z’ x’y x’+y’ x+y+z’ L R 0 0 0 1 1 1 0 1 0 1 1 1 1 0 0 1 1 1 0 0 0 0 1 0 0 0 0 1 0 1 0 1 0 1 1 1 1 1 1 0 1 1 1 0 0 0 0 1 1 1 1 1 1 0 0 0 1 1 1 0 0 1 1 1 1 1 0 1 0 1 0 1 0 0 1 1 1 1 1 1 0 0 0 1 0 0 0 0 1 0 0 1 1 1 0 0 0 0 0 0
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Tutorial 3 sol - EE 2000 Logic Circuit Design Semester A...

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