-Programmer oriented
- User oriented
- Technician oriented
marto answered the question on November 8, 2019 at 10:42
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Anthony, a student at Kericho Technical College defined a computer as "an electronic device which accepts, processes data and produce information depending on its decisions". Was this student right? Explain you answer.
Date posted: November 8, 2019. Answers (1)
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Work out 3210-1910 in 8-bit binary notation;
(i) As a signed magnitude representation using ones complements.
(ii) Using two’s complement
Date posted: November 7, 2019. Answers (1)
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Convert each of the following numbers;
(i) 126810 to hexadecimal
(ii) 51C3D16 to its binary equivalent
(iii) 84C16 to octal
(iv) 1768 to hexadecimal.
Date posted: November 7, 2019. Answers (1)
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Date posted: November 7, 2019. Answers (1)
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The information in figure 3 below is maintained by the patron of wildlife club in a school. Study it and answer the questions that follow.
(a) Describe the field values, records and file.
(b) State the most appropriate primary key for the list.
(c)State the most appropriate data types for the fields:
(i) Admission number
(ii) Membership number.
(d) If a database was to be created for the list; forms, tables, queries and reports are likely to be used.
(i) State the purpose of each of these objects.
(ii) Which objects cannot be used to store the data in the list?
(e) (i) How many field values are in the list?
(ii) How many records are in the list?
Date posted: November 7, 2019. Answers (1)
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An airline uses an information system whereby if a passenger at station A books a plane seat, this transaction is immediately shown at stations A and B such that no other passenger can book the same seat.
(I) Name this data processing mode.
(II) State two advantages of this data processing mode.
Date posted: November 7, 2019. Answers (1)
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State two advantages of using coaxial cables over satellite in data communication.
Date posted: November 7, 2019. Answers (1)
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Date posted: November 7, 2019. Answers (1)
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Date posted: November 7, 2019. Answers (1)
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(i) Name the control structures used in the flowchart.
(ii) Determine the value of A, B, C and F.
iii) Write a pseudocode for the flowchart in figure above.
Date posted: November 7, 2019. Answers (1)
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List two factors that dictate the cost of a computer system.
Date posted: November 7, 2019. Answers (1)
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Date posted: November 7, 2019. Answers (1)
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Date posted: November 7, 2019. Answers (1)
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The figure below shows the spreadsheet.(Solved)
A trader uses a spreadsheet program to calculate profits.
The figure below shows the spreadsheet.
(a)Which row contains labels only?
(b) Write the formula that has been entered in cell F2.
Date posted: November 7, 2019. Answers (1)
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Give three hardware considerations that should be made before installing an operating system.
Date posted: November 7, 2019. Answers (1)
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Explain two factors that may prompt an organization to develop their own software rather than buy over the shelf softwares.
Date posted: November 7, 2019. Answers (1)
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Explain.(Solved)
Fifth generation computers are said to be characterized by the emergence of artificial intelligence.
Explain.
Date posted: November 7, 2019. Answers (1)
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Draw a diagram to show a system that is controlled through feedback.
Date posted: November 6, 2019. Answers (1)
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Date posted: November 6, 2019. Answers (1)
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(i) System control
(ii) Sub-systems(Solved)
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(i) System control
(ii) Sub-systems
Date posted: November 6, 2019. Answers (1)