Describe the building blocks of computers and programs based on your understanding and answer this question....

 

 

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Describe the building blocks of computers and programs based on your understanding and answer this question. You are given the following code segments: 1 def add1(a, b): (a) 2 3 4 a = a+b print('In add1: ', a, b) 5e def add2(a, b): 6 7 8 a.append(b) print('In add2: ', a, b) 9 def main(): 10 a = [1] 11 b = [2] 12 add1(a, b) 13 print('In main: ', a, b) 14 a = [1] 15 b = [2] 16 add2(a, b) 17 print('In main: ', a, b) 18 19 main() (i) What is the output of the code segment when it is executed? (4 marks) Explain in terms of assignment statements and mutability, the output you gave for part (i). (4 marks) (b) (c) (i) (ii) 1 a, b 1, 9 2 while True: 3 456 if abs(a * a- b) <0.00000000000001: = break a (a + b/a)/2 6 print(a) The values of variable a at line 5 in the iterations of the while loop are as follows: 5.0 3.4 3.023529411764706 3.00009155413138 3.000000001396984 3.0 Explain in ONE (1) sentence what the code segment does. (3 marks) Will the code segment be able to perform the purpose you specify in Q1(b)(i) if the statement on line 5 is changed to: a = (a + b)/2? Explain. 1 a = '123456' 2 for i in range(len(a)-1, -1, -1): (6 marks) 3 print(a[i::2]) (i) List out the values generated by the expression: range(len(a)-1, -1, -1). (2 marks) (ii) Explain in ONE (1) sentence what the code segment does. (4 marks) (iii) What is the output of the code segment when it is executed? (2 marks) Describe the building blocks of computers and programs based on your understanding and answer this question. You are given the following code segments: 1 def add1(a, b): (a) 2 3 4 a = a+b print('In add1: ', a, b) 5e def add2(a, b): 6 7 8 a.append(b) print('In add2: ', a, b) 9 def main(): 10 a = [1] 11 b = [2] 12 add1(a, b) 13 print('In main: ', a, b) 14 a = [1] 15 b = [2] 16 add2(a, b) 17 print('In main: ', a, b) 18 19 main() (i) What is the output of the code segment when it is executed? (4 marks) Explain in terms of assignment statements and mutability, the output you gave for part (i). (4 marks) (b) (c) (i) (ii) 1 a, b 1, 9 2 while True: 3 456 if abs(a * a- b) <0.00000000000001: = break a (a + b/a)/2 6 print(a) The values of variable a at line 5 in the iterations of the while loop are as follows: 5.0 3.4 3.023529411764706 3.00009155413138 3.000000001396984 3.0 Explain in ONE (1) sentence what the code segment does. (3 marks) Will the code segment be able to perform the purpose you specify in Q1(b)(i) if the statement on line 5 is changed to: a = (a + b)/2? Explain. 1 a = '123456' 2 for i in range(len(a)-1, -1, -1): (6 marks) 3 print(a[i::2]) (i) List out the values generated by the expression: range(len(a)-1, -1, -1). (2 marks) (ii) Explain in ONE (1) sentence what the code segment does. (4 marks) (iii) What is the output of the code segment when it is executed? (2 marks)