المساعد الشخصي الرقمي

مشاهدة النسخة كاملة : موضة 2013 فساتين سهرة 2014 لانجري 2014


الصفحات : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 [18] 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

  1. g) What is the mean current in the mobile phone’s circuit when Wi-Fi is used for 13h of continuous internet browsing?
  2. f) Under the Battery section, what is “3200 mAh”? And why the maximum usage time differs when the mobile is used for different purposes?
  3. e) How much internal memory storage capacity does this mobile phone contain? RAM storage capacity? Can we consider these capacities as high and why?
  4. f) Under the Battery section, what is “3200 mAh”? And why the maximum usage time differs when the mobile is used for different purposes?
  5. e) How much internal memory storage capacity does this mobile phone contain? RAM storage capacity? Can we consider these capacities as high and why?
  6. d) How many processors does this mobile phone contain? What is its processing speed?
  7. c) What does AMOLED stand for? What does it mean? And what are its advantages
  8. b) What does “802.11a/b/g/n/ac” mean? What kind of details does it provide? Explain and give examples.
  9. c) What does AMOLED stand for? What does it mean? And what are its advantages?
  10. a) This mobile phone permits the user to connect to several types of mobile networks: GSM, GPRS, EDGE, 3G, 4G, etc. What is GSM? and why is the GSM connectivity included in such a novel smartphone device while it seems to be very old compared to 4G L
  11. T215A permitted you to learn many concepts related to Communication and Information technologies such as: Mobile devices, WLAN, storage devices, etc. Consequently, you are supposed to use what you learned in real-life situations.
  12. Mention and briefly explain two different GPS applications that might be used by the Arab Open University; Recommend one of these applications and provide strong arguments for your recommendation.
  13. Mention and briefly explain two different GPS applications that might be used by the Arab Open University;
  14. explain two different GPS applications that might be used by the Arab Open University
  15.  What is GPS and how it works? . How accurate is it? What limits its performance and affects its accuracy? Illustrate at least two limitations .
  16. GPS and how it works
  17. different GPS applications that might be used by the Arab Open University
  18.  Recommend one of these applications and provide strong arguments for your recommendation.
  19.  Mention and briefly explain two different GPS applications that might be used by the Arab Open University;
  20.  How accurate is it? What limits its performance and affects its accuracy? Illustrate at least two limitations .
  21.  What is GPS and how it works? .
  22. Your role in this question of your TMA is to help the AOU R&D department in understanding what GPS is and finding interesting GPS applications. To do so, you are supposed to edit a short report that fairly answers the following questions:
  23. Suppose that the Research and Development department (R&D) at the Arab Open University intends to implement GPS based applications and that its research members are currently searching for novel student-ended applications. Your role in this quest
  24. The Global Positioning System (GPS) is a location system developed by the United States Department of Defense (DOD) for its tremendous application as a military locating utility. Over the past years, the GPS has proven to be a useful tool in non-mili
  25. Question 1: A GPS Based Application at AOU
  26. A GPS Based Application at AOU
  27. main idea of Diagraph coding
  28.  You are advised to remind yourself of the issues concerning plagiarism.
  29.  You can use external reliable resource(s) to elaborate your answers but ensure that you provide its (their) reference(s) at the end of your answer. The reference(s) should be in a standard form.
  30.  In questions 2.B.b, 2.C.b and 2.D.b, you are requested to illustrate, step by step, how you have applied each encryption technique.
  31. Which of the previously studied ciphers would you recommend using to encrypt your report before sending it to your Director? Give strong arguments for you recommendation.
  32. c) What is the keyword that might be used to decrypt the ciphertext
  33. b) Use the keyword “zratxhuekf” to encrypt the content of your report using the Vigenère Cipher
  34. main idea of the Vigenère Cipher. Does it ensure a high level of security
  35. What can make it an unbreakable cipher
  36. explain the main idea of the Vigenère Cipher. Does it ensure a high level of security? What can make it an unbreakable cipher? Illustrate
  37. explain the main idea of the Vigenère Cipher. Does it ensure a high level of security? What can make it an unbreakable cipher
  38. a) In no more than 150 words explain the main idea of the Vigenère Cipher. Does it ensure a high level of security? What can make it an unbreakable cipher? Illustrate.
  39. 2.D. Vigenère Cipher
  40. b) Use Caesar Cipher with Diagraph Coding to encrypt the content of your report with a key K=321
  41. main idea of Diagraph coding. Does its implementation in a Caesar Cipher algorithm increase the security level of the ciphertext? Why/Why not?
  42. the main idea of Diagraph coding. Does its implementation in a Caesar Cipher algorithm increase the security level of the ciphertext
  43. explain the main idea of Diagraph coding. Does its implementation in a Caesar Cipher algorithm increase the security level of the ciphertext? Why/Why not?
  44. a) In no more than 150 words explain the main idea of Diagraph coding. Does its implementation in a Caesar Cipher algorithm increase the security level of the ciphertext? Why/Why not?
  45. 2.C. Caesar Cipher with Diagraph Coding
  46. c) What is the decryption key your director should use to decrypt the encrypted report?
  47. Does the Caesar cipher ensure a high level of security? What are its drawbacks? Explain.
  48. Caesar cipher ensure a high level of security? What are its drawbacks? Explain.
  49. Caesar cipher ensure a high level of security
  50. c) Does the Caesar cipher ensure a high level of security? What are its drawbacks? Explain
  51. b) Use Caesar algorithm to encrypt the content of your report with a key K=14.
  52. the Caesar encryption technique
  53. explain the Caesar encryption technique
  54. 2.B. Caesar Cipher
  55. In all the following questions and for simplicity reasons, suppose that your report contains the following sentence: “High Profit”.
  56. Based on what you learned in T215B about “Privacy and Surveillance”, discuss two different kinds of threats that might confront your confidential report when it is sent by email to your Branch director
  57. discuss two different kinds of threats that might confront your confidential report when it is sent by email to your Branch director. (Respect a maximum word count of 200 words).
  58. discuss two different kinds of threats that might confront your confidential report when it is sent by email to your Branch director.
  59. Based on what you learned in T215B about “Privacy and Surveillance”, discuss two different kinds of threats that might confront your confidential report when it is sent by email to your Branch director. (Respect a maximum word count of 200 words).
  60. 2.A. Privacy, surveillance and security threats
  61. In this question of your TMA, you are supposed to investigate three different encryption techniques and to deduce which one of them provides for your report the highest level of confidentiality.
  62. However, as per an urgent request from the AOU headquarters, your Branch Director was invited to attend an urgent meeting outside the country to discuss your Branch’s financial activities and he hence asked you to send him by email a soft-copy of the
  63. Suppose that you are working as a financial expert in one of the AOU’s Branches and that you were asked to edit a highly confidential report about the financial activities at your Branch. After two weeks of hard work, you finalized the report and now
  64. The Arab Open University – AOU – is a multinational university with several branches around the Arab World. Recently, it has been earning itself a reputation for its success in credibility and high educational issues. Suppose that you are working as
  65. You are advised to remind yourself of the issues concerning plagiarism.
  66. Your report should be based on reliable resources (i.e. journal articles, technical reports, conference papers, international textbooks) and you should provide a reference list at the end of your report. The references should be in a standard form.
  67. Ensure that your report meets the objectives, has an appropriate structure and style, and that its technical level is appropriate for the audience, purpose and medium. For more details, you can refer to the T215 textbooks (Block 1 – Part 7; Block 2 –
  68. Your report should include titles, subtitles and at least two figures and/or tables. Do not forget to include captions and to use cross-referencing.
  69. You might need to form some idea of how many words you need to give to each concern.
  70. Your report must provide reliable answers for all the above questions.
  71. Your report should be between 1000 and 1200 words in length. Under-length and over-length reports will be penalized.
  72. elaborate reliable answers to these raised questions by editing a medium length report (1000-1200 words). He also offered you the opportunity to present this report to all your classmates during the next discussion session
  73. the mentor of this discussion session asked you as an active participant to elaborate reliable answers to these raised questions by editing a medium length report (1000-1200 words). He also offered you the opportunity to present this report to all yo
  74. In this question of the TMA, you are supposed to edit the requested report taking into consideration the following points:
  75. Since the students were highly interested and motivated to understand what encryption and RSA algorithm are about, the mentor of this discussion session asked you as an active participant to elaborate reliable answers to these raised questions by edi
  76. RSA keys generation technique: What is RSA algorithm? How to create the RSA public and private keys?
  77. Factorizing large prime numbers: What is a prime number? How large prime numbers can be useful to cryptography?
  78. Modular arithmetic: What is Modular arithmetic in general? What are Modular addition, multiplication and exponentiation? Examples?
  79. Asymmetric and public key cryptography: What is asymmetric key cryptography and why it is usually called public key cryptography? What are its applications? What are its advantages and disadvantages?
  80. Symmetric key cryptography: What is symmetric key cryptography? What are its applications? What are its advantages and disadvantages?
  81. Encryption: What is encryption? What is it used for? What are its advantages and disadvantages?
  82. As an AOU student, suppose that you were attending a T215B discussion session during which many questions about data encryption in general were raised as well as other questions about a well-known cryptographic algorithm called RSA in particular. Tho
  83. حل واجب T215B: Communication and information technologies
  84. T215B: Communication and information technologies
  85. شارك ببعض الاقتراحات للأخذ بها بعين الاعتبار لتحسين عملية التفكير عند طلابك في المدرسة، ناقش المقترحات من خبرتك في العملية التربوية
  86. تناول هذه التصنيفات التربوية التعليمية النفسية بشكلها التكاملي التفاعلي موضحا النتائج التعليمية والتعلمية بالشرح العلمي لكل تصنيف على حده
  87. نظرية الدافعية للانجاز. Achievement motivation theory 2.نظرية العزو Attribution theory 3.نظرية ماسلو للحاجات
  88. وضع علماء النفس عددا من الطرق لتصنيف نتائج التعلم، ومن هذه التصنيفات المجال المعرفي، والوجدانية، والنفسية الحركية, والمطلوب منك ما
  89. اختر موقعاً تعليمياً ثمّ تصفحه وتمعن كافة أجزائه بدقة، واكتب بعد ذلك تقريراً يتضمن وصفاً عاماً مختصراً للموقع، ووصفاً تفصيلياً لثلاثة أجـزاء منه يتضمن التقريـر بالطبـع عــنــوان الموقـــــــــــــــــع (Web Site Address/URL). ثمّ قيّم الموقع موظفاً م
  90. النشاط الثاني : تخير أحد مقررات المرحلة الإبتدائية ومنها أحد الوحدات الدراسية وحدد المفاهيم والتعميمات والمهارات والقيم والاتجاهات التي وردت في الوحدة . وقم بتوضيح كيفية تدريس أحد المفاهيم الواردة
  91. تخير أحد مقررات المرحلة الإبتدائية ومنها أحد الوحدات الدراسية وحدد المفاهيم والتعميمات والمهارات والقيم والاتجاهات التي وردت في الوحدة . وقم بتوضيح كيفية تدريس أحد المفاهيم الواردة
  92. النشاط الأول: ضع خطة يومية لأحد دروس المرحلة الإبتدائية( درس تعميم) مشتملا على عناصر التخطيط الرئيسية موظفا طريقة التدريس بالإستقراء
  93. ضع خطة يومية لأحد دروس المرحلة الإبتدائية( درس تعميم) مشتملا على عناصر التخطيط الرئيسية موظفا طريقة التدريس بالإستقراء
  94. المناهج وطرق التدريس العامة ed241&ed531
  95. حل واجب المناهج وطرق التدريس العامة ed241&ed531
  96. حل واجب مقرر المناهج وطرق التدريس العامة ed241&ed531
  97. مقرر المناهج وطرق التدريس العامة ed241&ed531
  98. برأيك ما هو واقع التعليم في المجتمعات العربية في ضوء ما سبق وهل تقرر أن تعليمنا يتوفر فية ديقراطية التعليم ، ادعم اجابتك بوقائع وأحداث بإمكانك جمع حقائق وملاحظات من مدرسة أو لقاءات لعدد من الأفراد ، وآباء ومعلمون
  99. هناك حديث عن منهج يدعى المنهج الخفي في المدرسة ، ما هو أساسه ومن المتضرر منه ، ادعم حديثك بآراء مفكريين ومقولاتهم
  100. يقال بأن المدرسة تقتح أبوابها للجميع ولكن الأقوى هو الذي يبقى وينال القسط الأكبر من نتاجاتها، ناقش ذلك
  101. هل يمكن للمدرسة أن تكون ديمقراطية في مجتمع لا ديمقراطي ؟وهل يتوافق مظهرها الخارجي مع المضامين الحقيقية للعملية التربوية في داخلها
  102. عندما نقول بأننا نعلم طفلاً رضيعاً ،هل هذا صحيح ؟ وضح ذلك
  103. هل يمكن للموقف التربوي أن يختزل الموقف التعليمي ؟
  104. ما هو الموقف التعليمي وهل يتضمن جوانب تربوية ؟ اعط امثلة على ذلك
  105. ما هو الموقف التعليمي وهل يتضمن جوانب تربوية
  106. مدخل إلى التربية ed 111-511
  107. حل واجب مدخل إلى التربية ed 111-511
  108. حل واجب مقرر : مدخل إلى التربية ed 111-511
  109. مقرر : مدخل إلى التربية ed 111-511
  110. 1- وضع مقدمة (تطرح الموضوع والهدف من المقال) ، صلب الموضوع (يتضمن تلخيص عام للمقال الذي تم اختياره ) وخاتمة (يتم فيها توضيح الرأي الشخصي للطالب حول الموضوع)، .
  111. كتابة مقالة ( 15 سطر كحدّ أقصى ) تُلخص المقال الذي تم اختياره، على ان تكون الاجابة على النحو التالي
  112. ادخل الى شبكة الانترنت واختر مقالة من 2-3 صفحة على الأقل يكون موضوعها احدى مهارات التعلم الذاتي (التي وردت في الوحدة الاولى )
  113. يعتمد التعلم الذاتي، كي يكون تعلماً حقيقياً وفعالاً، على طائفة من المهارات التي ينبغي أن يكتسب فيها المتعلم مقدرة شخصية وقوة ذاتية ليكون متعلماً مقتدراً على حسن توجيه ذاته وتنشيط فاعلياته تجاه تحقيق أهدافه في النمو والتقدم
  114. التكامل الوظيفي بين المهارات الأساسية للغة كوسيط
  115. 3- الخاتمة: مناقشة التكامل الوظيفي بين المهارات الأساسية للغة كوسيط.
  116. 2- المتن: إرشادات وتوجيهات للقراءة المنتجة والفاعلة نتيجة لخبراتك الشخصية، في كل عنصر من عناصر القراءة المنتجة.
  117. 1- مقدمة: خلفية نظرية حول: مفهوم القراءة كعملية عقلية معرفية. مراحل القراءة وعملياتها العقلية. استخدامات القراءة الدراسية في التعليم المفتوح أنواع القراءة للتعلم الذاتي
  118. مقالاً حول مهارات القراءة للتعلم الذاتي وفق المخطط التالي
  119. تعد مهارات القراءة الدراسية الفاعلة من المتطلبات الأساسية للنجاح في نظام التعليم المفتوح
  120. "تعد مهارات القراءة الدراسية الفاعلة من المتطلبات الأساسية للنجاح في نظام التعليم المفتوح". أكتب مقالاً حول مهارات القراءة للتعلم الذاتي وفق المخطط التالي:
  121. حل واجب مهارات التعلم الذاتي gr101 الفصل الدراسي الاول للعام الأكاديمي 2013- 2014
  122. مهارات التعلم الذاتي gr101 الفصل الدراسي الاول للعام الأكاديمي 2013- 2014
  123. حل واجب مقرر مهارات التعلم الذاتي gr101
  124. مقرر مهارات التعلم الذاتي gr101
  125. b) Let R be the partial order relation defined on A = {2, 3, 4, 5, 6, 8, 10, 40}, where xRy means x | y. i. Draw the Hasse diagram for R. ii. Find the upper and lower bounds of {4, 8}.
  126. b) Let R be the partial order relation defined on A = {2, 3, 4, 5, 6, 8, 10, 40}, where xRy means x | y.
  127. a) Let R = {(1, 1), (1, 3), (1, 4), (2, 2), (3, 1), (3, 3), (3, 4), (4, 1), (4, 3), (4, 4), (5, 5), (6, 6)} be an equivalence relation on A = {1, 2, 3, 4, 5, 6}. Find the equivalence classes for the partition of A given by R.
  128. a) Find the transitive closure of R = {(a, a), (b, a), (b, c), (c, a), (c, c), (c, d), (d, a), (d, c)} on the set {a, b, c, d}.
  129. Let R1 = {(x, y): |x - y| ≤ 1} and R2 = {(x, y): 2x + y ≤ 6} be relations on the set A = {1, 2, 3, 4}. a) List the elements of R1 and R2.
  130. Find the smallest positive integer a in the encryption function
  131. b) Find the hexadecimal representation of the expansion .
  132. a) Consider the decimal number a = 137. i. Find in set builder notation the set of all positive integers b such that b ≡ a (mod 5).
  133. a) Let A = {a, b, c} and B = {1, 2, 3, 4}. Determine whether each of the following is TRUE or FALSE:
  134. b) (124 mod 6 = 4) → (5 | 16). c) , domain is the set of integers.
  135. Q−2: [5×1 marks] Determine whether each of the following is TRUE or FALSE:
  136. b) Using the truth table, determine whether or not the proposition is a tautology.
  137. a) Find a proposition using only and the connective ˅ with the following truth table:
  138. M131: Discrete Mathematics
  139. c) Show that the first three column vectors are linearly independent. Explain.
  140. b) Determine whether the fourth column vector forms a linear combination with the first three column vectors.
  141. a) Find a matrix B that is row equivalent to A.
  142. Q−6:[2+1+1 marks]Consider a linear system whose augmented matrix is of the form: . For what values of a and b will the system have: a) No Solution; b) A unique solution; c) Infinitely many solutions.
  143. Q−6:[2+1+1 marks]Consider a linear system whose augmented matrix is of the form:
  144. c) Find the matrix B such that .
  145. b) Find a matrix C such that .
  146. a) Write the linear system in matrix form .
  147. Q¬−5:[1 + 2 + 2 marks]. Consider the linear system: .
  148. b) Solve the system by applying the Gaussian elimination method.
  149. a) Write the augmented matrix for the system.
  150. Q−3:[1+4 marks]Consider the linear system:
  151. c) Compute |-2A.AT.A-1|
  152. a) Write the coefficient matrix A of the system
  153. Q−2: [1+3+2 marks]For the system:
  154. e) The vectors form a linear combination with .
  155. d) The vectors are linearly independent.
  156. c) If AB = 0, thenA = B = 0.
  157. b) If (c1 , c2) is a solution of the 2 x 2 system , then, for any real number k, the ordered pair (kc1 , kc2) is a solution.
  158. a) If m1 ≠m2 in the system , where m1 , m2 , b1 , and b2 are constants, then the system has a unique solution.
  159. M132: Linear algebra
  160. e) Estimate the population in the year 2020.
  161. d) What was the population in 1960?
  162. c) What is the growth constant?
  163. b) What was the initial population (the population in 1950) ?
  164. a) Find the formula for P(t).
  165. Q¬−8: [5×1 Marks] Let P(t) be the population (in millions) of a certain city t years after 1950, and suppose that P(t) satisfies the differential equation P′(t) = 0.017 P(t), P(0)= 2560
  166. b) Use the logarithmic differentiation to differentiate the function
  167. a) Differentiate the function
  168. A window is being built and the bottom is a rectangle and the top is a semicircle. If there is 12 m of framing materials what must the dimensions of the window be to let in the most light
  169. e) Find the points of inflection, if any.
  170. d) Find the intervals on which the graph of f (x) is concave up or concave down.
  171. c) Find the local maximum and minimum of f (x), if any.
  172. b) Find the intervals on which f (x) is increasing or decreasing.
  173. Q¬−4: [2+3 Marks] Use the definition of the derivative to find f ′(x) if
  174. Use the definition of the derivative to find f ′(x) if
  175. Find the slope of the tangent line to the following curves at the designated points
  176. c) Describe the domains of f (x) and g(x).
  177. b) Find g (f (x)), and describe its domain
  178. a) Find f (g(x)) and describe its domain.
  179. Q−2: [2+2+1 Marks] Let .
  180. b) Find the points of intersection, if any, of the graphs of y = f (x) and y = -4 .
  181. a) Find the zeros of g(x) and h(x).
  182. Q−1: [4+1 Marks] let
  183. Find the probability of accident rain or no rain.
  184. Suppose that city records produced the following probability data on a driver being an accident on the last day of a Memorial Day Weekend
  185. A committee of 3 juniors and 3 seniors is to be formed from the members of a club having 18 juniors and 15 seniors. How many different committees are possible?
  186. How many permutations are there of the letters in the word BANANA?
  187. You are considering 10 different colleges. Before you decide to apply to the colleges, you want to visit some or all of them. In how many orders you can visit:
  188. Why might the range be an unhelpful measure of spread for these particular data?
  189. a) Find the range of the earnings.
  190. Calculate the standard deviation of the earnings.
  191. Calculate the lower and upper quartiles, and find the inter-quartile range.
  192. Calculate the mean, median and mode.
  193. Below are the earnings, for a particular week, of 15 staff (including the owner) working in a small business
  194. e) Find the cumulative distribution function.
  195. d) Find the mean and standard deviation.
  196. The density function for a random variable X is given by where k is a constant
  197. Q-6: [2+2+2+3+3Marks] The density function for a random variable X is given by where k is a constant
  198. e) Calculate the variance and standard deviation of the random variable X.
  199. d) Find the mean of the random variable X.
  200. b) Find the probability distribution and the cumulative distribution of the random variable X.
  201. a) List the possible elements of the sample space S for the three tosses of the coin and to each sample point assign a value x of X.
  202. Q-5: A coin is tossed three times. Let X be a random variable representing the number of heads in three tosses of a coin. The coin is unbalanced and a head has a 60% chance of occurrence.
  203. Q-5: [2+2+3+2+3Marks] A coin is tossed three times. Let X be a random variable representing the number of heads in three tosses of a coin. The coin is unbalanced and a head has a 60% chance of occurrence.
  204. d) If the product is not defective, what is the probability that it was made by machine ?
  205. c) If the product is defective, what is the probability it was made by machine ?
  206. b) What is the probability that it is not defective
  207. a) What is the probability that it is defective
  208. A manufacturer has 3 machines , make 20%, 30% and 50%, respectively, of the products. It is known from past experience that 2%, 3% and 4% of the products made by each machine respectively are defective. If a finished product is randomly selected
  209. Q-4: [2+2+3+3Marks] A manufacturer has 3 machines , make 20%, 30% and 50%, respectively, of the products. It is known from past experience that 2%, 3% and 4% of the products made by each machine respectively are defective. If a finished product is ra
  210. d) Find the probability of an accident, given rain.
  211. c) Find the probability of an accident and rain.
  212. b) Find the probability of rain, accident or no accident.
  213. a) Find the probability of accident rain or no rain.
  214. Accident (A) No accident (A’) Total Rain (R) 0.025 0.335 0.360 No rain (R’) 0.015 0.625 0.640 Total 0.040 0.960 1.00
  215. Q-3: [3+3+1+3Marks] Suppose that city records produced the following probability data on a driver being an accident on the last day of a Memorial Day Weekend.
  216. c) A committee of 3 juniors and 3 seniors is to be formed from the members of a club having 18 juniors and 15 seniors. How many different committees are possible?
  217. b) How many permutations are there of the letters in the word BANANA?
  218. i- 6 of the colleges ii- All ten colleges
  219. a) You are considering 10 different colleges. Before you decide to apply to the colleges, you want to visit some or all of them. In how many orders you can visit:
  220. e) Why might the range be an unhelpful measure of spread for these particular data?
  221. c) Calculate the standard deviation of the earnings.
  222. Calculate the lower and upper quartiles, and find the inter-quartile range.
  223. a) Calculate the mean, median and mode.
  224. Weekly earnings (£) 280 370 305 285 480 1,260 210 340 280 290 315 325 370 360 280
  225. Q−1: [2+3+3+1+1 Marks] Below are the earnings, for a particular week, of 15 staff (including the owner) working in a small business:
  226. Below are the earnings, for a particular week, of 15 staff (including the owner) working in a small business
  227. Microcontroller A: - The clock speed of the processor is 33.554432 MHz - 25-bit counter/timer. - 1024 bytes RAM. - 256 bytes non-volatile, read-write memory. - Watchdog timer
  228. Microcontroller B: - The clock speed of the processor is 131.072 KHz - 18-bit counter/timer. - 512 bytes RAM. - 128 bytes non-volatile, read-write memory. - Watchdog timer
  229. Which microcontroller would you choose from the above two if you need to generate clock pulse every 2 seconds? (Give reasons).
  230. Microcontroller A: - The clock speed of the processor is 33.554432 MHz - 25-bit counter/timer. - 1024 bytes RAM. - 256 bytes non-volatile, read-write memory. - Watchdog timer Microcontroller B: - The clock speed of the processor is 131.072 KHz - 18-b
  231. (ii) State if 2’s complement overflow has occurred. Justify your answer.
  232. (i) Add these two numbers in binary. Show the carry bits in your working.
  233. (b) The following two 8-bit binary code words both represent 2’s complement integers: 0101 1010 0110 1111
  234. (b) The following two 8-bit binary code words both represent 2’s complement integers:
  235. (ii) Work out what this code word represents if it is instead the code for a signed integer using 2’s complement representation. Show your work.
  236. (i) Write down what this code word represents if it is the code for a text character using 7-bit ASCII code with a zero inserted in the leftmost position. (2 marks)
  237. (a) This part relates to the 8-bit binary code word 0101 0001
  238. e. What does the loop do? Do not give a description on an instruction-by- instruction level; give the overall task of the loop in brief
  239. d. Why is the following instruction: “add immediate rB 0000 “used?
  240. c. The loop reads successive data items from a block of locations in data memory. What are the lowest and highest addresses (in hexadecimal) of the locations in this block?
  241. b. How many times in total will the set of instructions within the loop be executed?
  242. a. The subroutine includes a loop. Which register is being used as the loop counter?
  243. load immediate r1 0000 load immediate r3 0012 load immediate rA 0500 load register-indirect via rA rB add immediate rB 0000 jump if zero relative 0001 jump relative 0001 add immediate r1 0001 add immediate rA 0001 subtract immediate r3 0001 jump if z
  244. In this question, all numbers are in hexadecimal. This part of the question refers to the following subroutine for the T224 simulated processor:
  245. This question carries 25% of the assignment marks. It enables you to demonstrate your mastery of Learning Outcomes 4, 5, 10, 13 and 19 of Block 2.
  246. The processor needs to find out whether the patient has pressed a button to change the desired temperature. It does this examining the state of the two buttons. If one has been pressed, the stored value for the desired temperature is changed appropri
  247. Draw a flowchart for this part of the total task, assuming that a button will not have been pressed more than once
  248. b. The processor needs to find out whether the patient has pressed a button to change the desired temperature. It does this examining the state of the two buttons. If one has been pressed, the stored value for the desired temperature is changed appro
  249. Draw the flowchart that corresponds to the above list using appropriate shapes for the boxes and drawing appropriate linking lines. Note that the flowchart includes at least one loop.
  250. - Input actual temperature.