Faculty of Computer Studies T103: Computer Organization and Architecture Fall 2014 2015 Tutor Marked Assignment Cut-off Date: November 22, 2014 Total Marks: 40 Contents Mark Question 1 ------------------------------------------------------------------ 05 Question 2 ------------------------------------------------------------------ 06 Question 3 ------------------------------------------------------------------ 04 Question 4 ------------------------------------------------------------------ 08 Question 5 ------------------------------------------------------------------ 06 Question 6 ------------------------------------------------------------------ 04 Question 7 ------------------------------------------------------------------ 07 Plagiarism Warning: As per AOU rules and regulations, all students are required to submit their own TMA work and avoid plagiarism. The AOU has implemented sophisticated techniques for plagiarism detection. You must provide all references in case you use and quote another persons work in your TMA. You will be penalized for any act of plagiarism as per the AOUs rules and regulations. Declaration of No Plagiarism by Student (to be signed and submitted by student with TMA work): I hereby declare that this submitted TMA work is a result of my own efforts and I have not plagiarized any other persons work. I have provided all references of information that I have used and quoted in my TMA work. Name of Student: Signature: Date: T103-Computer Organization and Architecture Cut-Off Date [November 22, 2014] TMA-Fall 2014 2015 Page [2] Q1- Perform the following base conversion with a maximum of six places to the right of the concerned point. Show your complete work: [5 Marks] I. (160.5)10 = ( )16 II. (A1.33)16 = ( )10 III. (171.4)8 = ( )10 IV. (1111010.000110)2 = ( )8 V. (F8.92)16 = ( )8 Q2- Represent the following decimal numbers in binary using 8-bit signed magnitude, one’s complement, and two’s complement: [6 Marks] I. 53 110101 II. -44 Q3- What decimal value does the 8-bits binary number 10101100 have if: [4 Marks] i- it is interpreted as unsigned number? ii- it is on a computer using signed-magnitude representation? iii- it is on a computer using one’s complement representation? iv- it is on a computer using two’s complement representation? Q4- Assume a simple model for floating-point representation is used, the representation uses a 14-bit format, 5 bits for the exponent, with a bias of 16, a normalized significand of 8-bits, and a single sign bit for the number: [8 Marks] I. Show how the computer would represent the numbers [30.375] and [32.25] using this floating-point format. [4 marks] II. Show how the computer would add the two floating-point numbers in part-I by changing one of the numbers so they are both expressed using the same power. [2 marks] III. Show how the computer would represent the sum in part-II. [1 mark] IV. What decimal value for the sum is the computer actually storing? [1 mark] T103-Computer Organization and Architecture Cut-Off Date [November 22, 2014] TMA-Fall 2014 2015 Page [3] Q5- Create the Kmap and then simplify for . [6 Marks] Q6- Find the truth table that describes the following circuit. [4 Marks] T103-Computer Organization and Architecture Cut-Off Date [November 22, 2014] TMA-Fall 2014 2015 Page [4] Q7- Consider the MARIE program below. [7 Marks] i. List the hexadecimal code for each instruction. [3 marks] ii. Draw the symbol table. [1 mark] iii. What is the output displayed when the program terminates? [1 marks] iv. What is the value stored in the AC when the program terminates? [2 marks] Hex Address Label Instruction 100 Load X 101 ADD Y 102 STORE W 103 CLEAR 104 OUTPUT 105 ADD W 106 STORE Y 107 HALT 108 X, HEX 00FC 109 Y, DEC 14 10A Z, HEX 0108 10B W, HEX 0000 The End
Posted on: Fri, 07 Nov 2014 23:49:48 +0000
Trending Topics
Recently Viewed Topics
© 2015