Bit2103:Introduction To Computer Applications Question Paper
Bit2103:Introduction To Computer Applications
Course:Bachelor Of Information Technology
Institution: Meru University Of Science And Technology question papers
Exam Year:2014
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INSTRUCTIONS: Answer question one and any other two questions
QUESTION ONE – (30 MARKS)
(a) An operating system is system software that plays a great role within the computer system. There are many operating systems from different manufacturers but all these operating systems play similar roles. Describe the following administrative tools available in a windows operating system. (i) Device manager (2 Marks) (ii) Windows registry (2 Marks) (iii) System restore (2 Marks) (iv) System information (2 Marks) (v) Scandisk (2 Marks) (b) Different components in a computer system play different roles towards the working of the entire system. The following is an example of such components. Briefly describe the role of the following components in a computer system; (i) Registers (2 Marks) (ii) CMOS( Complementary metal oxide semiconductor) (2 Marks) (iii) BIOS (2 Marks) (iv) Processor (2 Marks) (v) External bus (2 Marks) (c) Write short notes on the following computer system security threats and controls (i) Worm (2 Marks) (ii) Trojan Horse (2 Marks) (iii) Social Engineering (2 Marks) (iv) Virus definition files (2 Marks)
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(v) Firewall (2 Marks)
QUESTION TWO – (20 MARKS)
(a) There have been major changes in the memory designs. The common notable development have been SIMM, DIMM and DDR. Describe these changes with a view of bringing out the technical differences among the developments. (6 Marks) (b) Describe the PATA and SATA interfaces and comment on why you would choose SATA over PATA. (4 Marks) (c) Differentiate between a Pentium CPU and dual core CPU. (6 Marks) (d) List and describe any two cooling systems in a computer system. (4 Marks)
QUESTION THREE – (20 MARKS)
(a) Using relevant examples, describe the use of the following MS DOS commands. Marks will be awarded for the correct syntax. (i) REN (2 Marks) (ii) MOVE (2 Marks) (iii) EDIT (2 Marks) (iv) PATH (2 Marks) (v) MEM (2 Marks) (b) Describe a situation that would require you to start your windows XP operating system in safe mode. (4 Marks) (c) What is the importance of enabling automatic windows XP update in your computer system? (2 Marks) (d) Describe the process of enabling automatic updates in windows XP. (4 Marks)
QUESTION FOUR – (20 MARKS)
ABC systems is an ICT support company that offers various support services to its clients in all the major towns throughout east Africa. The company has hired you as a senior technical support person and one of your first assignments is to assemble a custom made machine for one of the company’s clients. Before you come up with the system, the management requires you to;
(a) List and describe the use of any eight major components that will be required to come up with the computer system. (8 Marks) (b) Define briefly Electrical static discharge (ESD) and briefly describe how you will take care of ESD during the system assembly process. (8 Marks) (c) Describe how you will physically install a DVD drive on the computer system to be assembled above. (4 Marks)
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QUESTION FIVE – (20 MARKS)
Briefly describe the importance of:
(a) Regular system maintenance. (4 Marks) (b) Regularly updating virus definition files (4 Marks) (c) Regular data backup (4 Marks) (d) Software licenses (4 Marks) (e) Windows registry (4 Marks)
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