ex1_u09 - University of Florida Department of Electrical &...

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University of Florida EEL 3701—Summer 2009 Dr. Eric M. Schwartz Department of Electrical & Computer Engineering Thursday, 2 July 2009 Page 1/ 12 Exam 1 ____________________________ Last Name , First Name Please read carefully. Instructions: Turn off all cell phones , beepers and other noise making devices . Show all work on the front of the test papers. Box each answer. If you need more room, make a clearly indicated note on the front of the page, "MORE ON BACK", and use the back. The back of the page will not be graded without an indication on the front. You may not use any notes, HW, labs, other books, or calculators. This exam counts for 33% of your total grade. Read each question carefully and follow the instructions . You must pledge and sign this page in order for a grade to be assigned. Put your name at the top of this test page and be sure your exam consists of 12 distinct pages. Sign your name and add the date below. The point values for problems may be changed at prof’s discretion Label the inputs and outputs of each circuit with activation-levels. For each circuit design, equations must not be used as replacements for circuit elements. For each mixed-logic circuit diagram, label the inputs of each device with the appropriate logic equations. Boolean expression answers must be in lexical order ,( i.e., /A before A, A before B, & D 3 before D 2 ). For K-maps, label each grouping with the appropriate equation. Always optimize your answer. The best answer gets the most points. PLEDGE: On my honor as a University of Florida student, I certify that I have neither given nor received any aid on this examination, nor I have seen anyone else do so. SIGN YOUR NAME DATE ( 2 July 2009 ) Page Available Points 2 6 3 8 4 11 5 9 6 11 7 13 8-10 23 11 7 12 12 TOTAL 100 Regrade comments below: Give page # and problem # and reason for the petition. Good afternoon! Welcome! Good luck & Go Gators!!!
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University of Florida EEL 3701—Summer 2009 Dr. Eric M. Schwartz Department of Electrical & Computer Engineering Thursday, 2 July 2009 Page 2/ 12 Exam 1 ____________________________ Last Name , First Name [6%] 1. Do the following arithmetic problems. Remember to show ALL work here and in EVERY problem on this exam. (2%) a) Determine the unsigned binary, octal, hexadecimal, and BCD representations of the number 137 10 . Binary: Octal: Hex: BCD: (2%) b) Determine the 9-bit signed magnitude, 1’s complement, and 2’s complement representations of the decimal number –137 10 . (Notice that this number is negative .) Signed Mag: 1’s Comp: 2’s Comp: (2%) c) What is 73 10 – 137 10 in 9-bit 2’s complement? Remember that you must show all work. (73 10 –137 10 ) 2 : 3 min 3 min 3 min
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University of Florida EEL 3701—Summer 2009 Dr. Eric M. Schwartz Department of Electrical & Computer Engineering Thursday, 2 July 2009 Page 3/ 12 Exam 1 ____________________________ Last Name , First Name [2%] 2. Divide the following unsigned numbers. Show the work in binary . Only three digits to the right of the point are required. What is the result in unsigned binary? What is your binary result in decimal (not the decimal result)? (For binary, show for digits to right of point.
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ex1_u09 - University of Florida Department of Electrical &...

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