NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
APRIL 2019 EXAMINATION

COURSE CODE: CIT463

COURSE TITLE: Introduction to Multimedia Technology

CREDIT: 3 Units

TIME ALLOWED: 2½ Hours

INSTRUCTION: Answer Question 1 and any other FOUR (4) Questions

QUESTIONS

1a)   Describe the term ‘pixel’, based on its’ properties. (3marks)

b) What do you understand by an ‘Icon-based authoring tool’? (3 marks)

c) List any six (6) types of specialized server            (3marks)

d) State any three functions of the ATM?    (3 marks)

e) Write short notes on the following storage devices:

         i) CD-R  (1 mark)

         ii)  CD+R           (2 marks)

         iii) CD-RW        (3 marks)

f) Discuss the relationship between the personal computer (PC) and computer server. (4 marks)

2a) Enumerate any four features that make dedicated servers suitable for their task environment (2 marks)

 b)     What do you understand by the term "Specialized servers"? (1 mark)

c) Write short notes on the following:          

         i) Application servers. (3 marks)

         ii) File and print servers. (3 marks)

         iii) Mail servers. (3 marks)

3a) Discuss the following:

1. the real-time  transfer protocol  (5 marks)
2. Active Movie  (4 marks)

b) State three common ways digital image can be created    (3 marks)

4a) What do you understand by Psychoacoustics?    [2 marks]

b)  State the function and the limitations of the Psychoacoustic model.            (1½ marks)

c) What do you understand by the term "digital image"?                  (2 marks)

d) Write short notes on the key feature of a digital image.   (4½ marks)

e) Mention any four (4) essential features for a Multimedia system. (2 marks)

5a) Describe the key elements of a protocol  (4½ marks)

b) Enumerate t any six (6) multimedia applications  (3 marks)

c) Outline the components required for a videoconferencing system. (4½ marks)

6a) State FOUR (4) reasons for a computer network.  (4 marks)

b) Briefly describe the basic operation of Internet telephony system           (5 marks)

c) Mention the three (3) sub-areas of the digital image processing. (3 marks)