UNIVERSITY EXAMINATIONS: 2019/2020
EXAMINATION FOR THE DIPLOMA IN INFORMATION TECHNOLOGY/
DIPLOMA IN BUSINESS INFORMATION TECHNOLOGY
DIT 108: COMPUTER ORGANIZATION AND ARCHITECTURE
FULLTIME/PARTTIME
DATE: MAY, 2020 TIME: 6 HOURS
INSTRUCTIONS: Answer ALL Questions.
SECTION B: 20 MARKS
Sequential Logic circuits are essential for the operation of the computer. Describe the operation of a D-flip flop from first principles. Hence or otherwise Design a four bit RAM circuit based on the D-flip
flop. You are required to use the every circuit app to simulate the circuit. Include truth tables and its
operation
(20 Marks)
SECTION C: 20 MARKS
Look at the diagram below:
a) Identify ports and parts 1-11 and give their types and use (5.5 Marks)
b) Identify components and parts a – t and give their type (if applicable) and use (10 Marks)
c) The motherboard shown was in use 20 years ago. Write an essay explaining any
changes/improvements in the mother-board components and design in the last 10 years. (4.5 Marks)
