NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
JANUARY 2021 EXAMINATION

COURSE CODE: DAM364

COURSE TITLE: Management Information System

CREDIT: 2

TIME ALLOWED: Two (2) hours

INSTRUCTION: Answer questions One (1) and any other three (3) questions

QUESTION ONE: (25 marks) compulsory

1a. Explain management information system and state its overall goal 7 marks

1b. Describe the following MIS concepts: Data, Information and Instruction 4 marks

1c. Differentiate between Teleconferencing and Videoconferencing 6marks

1d. Trace the contributions of these actors in the development of Internet: Project RAND, ARPANET and National Science Foundation, 6marks

1e. What is Teleprocessing? 2marks

2a. With suitable example for each, differentiate the following MIS types: Predictive, Decision taking, Decision making 8marks

2b. With suitable diagrams describe the operation of client-server and peer-to-peer topologies 7marks

3a. Explain the following information systems technology functions and the major constituents of each: Electronic mail and Computer Network 8 marks

3b. Discuss the following computer security concepts: Hackers and Blended threat 7marks

4a. Differentiate between the following Computer Operation Modes: Stand –Alone, Batch processing and Time-sharing 6 marks

4b. What is EBCDIC, explain its usage? 6marks

4c. Write the Excess 3 codes and Gray codes for the decimal digits 5, 7 and 9, 3 marks

5a. What is ASCII and explain its two usage formats? 7 marks

5b. Write the features of Flash Disk 4marks

5c. Explain the storage concepts: seek-time and data transfer rate 4marks