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Q. Perform the following binary operations:


(A) Find the sum of 2310 and −910 in binary using two’s complement


athematic.


(B) convert 1100100111012 to octal and hexadecimal



Q. Draw the logic diagram that represents the following function:


𝐹(𝑥, 𝑦, 𝑧) = 𝑋 + 𝑌



Q. Describe Kmaps by given an example for both the truth table and Kmaps.



Q. Convert (A3516) to decimal, showing conversion steps.

(Na-23 g/mol, O=16 g/mol, H= 1g/mol)


 X’Y’ + X’Y + XY = X’ + Y


a) Write a simple program to store some Employee objects in an ArrayList. Then display all the details of the objects in the ArrayList. Use the JOptionPane class for output.

 

b) Use the JOptionPane class to display only the name and surname of employees whose surname starts with the letter ‘M’. (Ensure that you have at least 2 such employees in the list).

Advanced: modify this functionality so that the start letter is not hard-coded, but the user can specify any letter, using the JOptionPane class for input.

 

c) Remove all employees whose salary is less than or equal to R5000. Then, using the JOptionPane class, display all the details of the remaining objects in the list.

 

d) Try to sort the contents of the list in alphabetical order of surname. Then, using the JOptionPane class, display all the details of the objects in the list.

 

e) Try to sort the contents of the list in ascending order of salary. Then, using the JOptionPane class, display all the details of the objects in the list.


1.  Abush Manufacturing Company produces two different types of Tractor. These are Hiwot and Durex. Hiwot requires 9 minutes to assemble and 2 minutes to package. While Durex requires 12 minutes to assemble and 6 minutes to package. In addition, each type has an engine. The company has 720 minutes of assembly time available 75 engines and 300 minutes of packaging time. Profits are b. 45 for Hiwot and br. 70 for Durex both per unit.

Required:

a. Formulate the Linear anagramming model for the problem. (Show all the necessary steps)

b. Determine how many tractors of each type to make in order to maximize total profit (use simplex method)

c. Interpret your result



Create an abstract class use super class called flowers for girls and superclass called vehicles for boys


 From a cyber security perspective, what would you do to implement a good security model relative to the SDLC? Would you build the SDLC first and then include cyber security (hardware/software) components, or integrate this at the outset? Your post can be from a conceptual perspective or a technical one. 


You have been appointed as IT Head of a soon to be opened bank in India by the name of “People’s bank” which will have branches all over India. People’s bank is a private sector bank. Highlight atleast 5 security threats that a bank may face in today’s times and suggest 5 innovative IT security mechanisms to ensure that such threats do not harm your bank & that your systems remain as secure as ever.


At the beginning of this task, you made a list of all the questions you have about the river environment in the past vs. the present. Look back at your list: think about the questions your peers asked that you did not initially write down. How are their questions different from the ones you originally asked?


List ten different Number system, briefly explaining them, giving at least 20 examples of each.


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