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st2sol - GN/KV Solution Studio#2 ECSE-2610 Computer...

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9-6-06 Solution Studio #2 GN/KV ECSE-2610 Computer Components and Operations Studio # 2 SOLUTION Due at the end of studio session 1.Two’s complements (Individual activity, 10 points) (a) Use 8-bit representation +113 10 = 0111 0001 ___________________ 2’s comp (b) -113 10 = 1000 1111 ___________________ 2’s comp (c) 10100111 2-comp = A7 _______ hex = - 89 ________ dec (d) 01000111 2-comp = 27 _______ hex = 71 ________ dec (e) Codes. The 25-bit two-dimensional codes are configured exactly like Fig. 2.14b in Wakerly. They have 16 information bits and 9 (even) parity bits. Do they contain any error? If so, circle where. 10111 1 0 1 1 1 0 1 101 01101 10111 1 0 1 1 1 11110 11100 11011 1 1 0 1 1 (a) (b) (a) error to be corrected in row 2, col 2. (b) detected in (2,2) & (4,4) or in (2,4) & (4,2). 2. Introduction to LogicWorks 5: Individual activity (15 pts), but help each other. The following exercise will show you how you can create and test a circuit with LogicWorks. Enter the circuit schematic shown on the next page. Proceed as follows. 1. Start LogicWorks 5 from the Start menu. Three windows should pop up. The window on the top left of the screen, with LogicWorks 5 - [Circuit1.cct] on its title bar, is called the design window. This is where you will draw the circuit to be simulated. The window on the right is called the
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