Hbc2106:Introduction To Computer Systems Question Paper
Hbc2106:Introduction To Computer Systems
Course:Bachelor Of Commerce
Institution: Meru University Of Science And Technology question papers
Exam Year:2013
QUESTION ONE (30 MARKS)
a. With aid of relevant examples, define the following term: (6 Marks)
i. Character ii. Track iii. Cache
b. Explain five components of database systems. (5 Marks) c. Outline three functions of BIOS in a PC. (3 Marks) d. State two internet service providers in Kenya. (2 Marks) e. Add the binary numbers in binary form. i. 100110 and 1001 (3 Marks) ii. 11101 and 1011 (2 Marks) f. Many organizations are spending a lot of resources in converting from traditional file processing systems method to database processing systems, discuss four the shortcomings of this file processing. (4 Marks) g. Describe five advantages of off the shelf software/application packages to a small scale business. (5 Marks)
QUESTION TWO (20 MARKS)
a. An operating system in a computer is resource manager, discuss this statement. (8 Marks) b. Explain why computer ethics are very important in any organization today. (2 Marks) c. Discuss five important computer related security issues being debated in business and government circles. (10 Marks)
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QUESTION THREE (20 MARKS)
a. Explain the following memory types clearly stating the importance of each in a computer system. i. Virtual memory ii. ROM iii. RAM (6 Marks) b. Describe any three reasons why you would advice Meru University ICT section to have a back up memory of their database. (6 Marks) c. Describe any four input activities of data processing system in an e-Learning system. (8 Marks)
QUESTION FOUR (20 MARKS)
SETCOM SYSTEMS is a company owned by three computer graduates which is one year old. Their business has picked up very fast and they have decided to buy more computers to implement a local area network (LAN) to link all the computers. They have been told that they need Network Interface Card (NIC) in order to connect the network.
i. Discuss the importance of networks. (5 Marks) ii. Using diagrams describe three network topologies. (9 Marks) iii. Outline any two importance of an NIC. (4 Marks) iv. Mention two negative impacts of networking computers in a banking environment.(2 Marks)
QUESTION FIVE (20 MARKS)
a. Perform the following base conversions i. 121 decimal to binary (2 Marks) ii. 69110 to octal (2 Marks) iii. 7A16 hexa to decimal (2 Marks) b. What are the limitations of the primary storage of a computer system that lead to consumers purchasing the secondary storage? (4 Marks) c. Explain any four factors that affect the speed of a processor. (6 Marks) d. List the four processor models. (4 Marks)
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