Ics2110;Information Technology I Question Paper
Ics2110;Information Technology I
Course:Bachelor Of Horticulture
Institution: Meru University Of Science And Technology question papers
Exam Year:2013
QUESTION ONE – 30 MARKS
a. Explain the meaning of the following terms used in information technology. (4 Marks) i. Data ii. Information iii. Process iv. Program b. Differentiate between 1st Generation and 2nd Generation computers in terms of period used, electronic components used, storage space and speed. (4 Marks) c. Describe how the following input devices enter data into a computer system giving two examples in each case. (4 Marks) i. Pointing devices ii. Document readers d. Identify any three challenges encountered when implementing a speech recognition input system. (2 Marks) e. State two circumstances under which a plotter may be preferred over a printer. (2 Marks) f. Explain the purpose of the following parts of the Central Processing Unit. (4 Marks) i. Control unit ii. Registers g. Distinguish between integrated software and software suites. (2 Marks) h. With an example explain how the following codes systems represent data. (4 Marks) i. BCD ii. EBCDIC i. Explain the meaning of term “duo core processor”. (2 Marks) j. Identify any two features of spreadsheet application software. (2 Marks)
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QUESTION TWO – 20 MARKS
a. An organization would like to purchase personal computers to be used in the day to day transaction. Use an example to describe computer system specifications identifying the screen type, screen size, processor speed, processor type, random access memory size and permanent storage device size. (6 Marks) b. Convert decimal number 245.2410 to: (6 Marks) i. Binary ii. Octal iii. Hexadecimal
c. Differentiate between sequential and direct access methods giving an advantage of each method. (4 Marks) d. Explain why “The boundary between a mobile phone and a personal computer is becoming thinner”. (4 Marks)
QUESTION THREE – 20 MARKS
a. An organization would like to store records of their products and customers, print reports and query the system. Identify the type of application system the organization will use and describe its features. (5 Marks) b. Convert the following numbers to decimal numbers. (6 Marks) i. 101012 ii. 4568 iii. 39E16 c. Explain the meaning of the following terms in spreadsheet application software. (4 Marks) i. Cell ii. Value iii. Label iv. Range d. Juma wanted to buy a more economical printer for his firm that deals with printing coloured documents and graphics. Identify the most appropriate printer for his firm justifying your answer. (5 Marks)
QUESTION FOUR – 20 MARKS
a. The use of floppy disk diminished as a result of introduction of compact disks and flash disks. Give reasons that led to limited use of floppy disks. (5 Marks) b. Accuracy is a major consideration when selecting an input device to enter data such as account number in the banking sector. Identify the most appropriate input device that can be used to improve accuracy when entering account number giving three advantages of the device. c. Briefly explain how a computer can be applied in the following areas. (6 Marks) i. Security ii. Health iii. Transport
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QUESTION FIVE – 20 MARKS
a. Use a diagram to describe the structure of a magnetic disk. (4 Marks) b. Perform the following calculations: (6 Marks) i. 1110112 + 1010012 ii. 45328 + 2168 iii. 19E16 + 4D716
c. Before 1990 internet connections was expensive with only a few organizations in the development countries connected to the internet. Today internet is one of the most popular means of communication and sharing information. Discuss the factors that have contributed to a widespread use of internet. (5 Marks)
d. Explain contribution of advancement in electronics to development of computer systems from 1945 to date. (5 Marks)
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