MONDAY: 22 MAY 2017 CICT INTRODUCTION TO COMPUTING
MONDAY: 22 MAY 2017 CICT INTRODUCTION TO COMPUTING Answer ALL questions. Marks allocated to each question are shown at the end of the question. QUESTION ONE a) A company XYZ Ltd. Wanted to develop a warning lamp to light if any of the following occur: - All systems are down - Systems A, B down but C is okay. - Systems A, C down but B is okay. - Systems A down but B,C is okay. Required: (i) Define the problem arising from the above scenario and formulate its truth table. (5 marks ) (ii) Write its simplified logic equation and draw its logic table. (5 marks) b) (i) Convert 11011.011 base 2 to base 10. (2 marks ) (ii) Convert 4DEA base 16 to base 8. (2 marks (iii) Compute 4DA1 base 16 – 45B base 16. (2 marks c) Recommend the metrics used to determine the following hardware evaluation criterion: (i) Reliability (2 marks ) (ii) U