Homework Week 1-v2-Answer Key

Homework Week 1-v2-Answer Key - CMIS 310 Homework Week 1...

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CMIS 310 – Homework Week 1 – Answer Key Porto – Spring 2012 Instructions This is an open-book individual homework assignment comprised of several objective questions, focused on the content studied during this particular week. This is due at the end of the week according to the class schedule. Guidelines 1* You should submit your exam to your assignment folder in WebTycho in a MS- Word (.doc or .docx) file. 2* Reference the questions by their number, or by repeating their text. 3* Be as clear and objective as you can in all questions and be sure you are answering what is asked. 4* Justify all your numerical answers, SHOWING CLEARLY HOW YOU OBTAINED YOUR RESULTS. 5* Put your name on your assignment . 6* Remember, the assignment is to be taken in accordance with the UMUC honor Code. Questions 1. Base conversions . Consider the following numbers, with the base specified as a subscript. Find X with the given base, and show your mental process and work to get to the final answers. a. 312 5 = X 8 Convert from base 5 to base 10, then from base 10 to base 8. (3 * 5^2) + (1 * 5^1) + (2 * 5^0) = (3 * 25) + (1 * 5) + (2 * 1) = (75) + (5) + (2) = 82 10 I find it easier to go through the binary, but you don’t have to. 82 = 64 + 16 + 2 = 1(010)(010) in binary = 122 on base 8 312 5 = 82 10 = 122 8 b. 56 10 = X 4 I find it easier through binary. 56 = 32 + 16 + 8 = (11)(10)(00) in binary = 320 on base 4 2. Decimal / Binary-Octal-Hexadecimal - Compute the following conversions, and show your mental process and work to get to your final answers. a. 100 2 in octal, in decimal and hexa: 4 b. 100 16 to binary, octal, & decimal
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0001 0000 0000 in binary 16^2 = 256 in decimal 000(1 00)(00 0)(000) = 400 in octal c. 75 10 75 = 64 + 8 + 2 + 1 = 1001011 in binary
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Homework Week 1-v2-Answer Key - CMIS 310 Homework Week 1...

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