A heap file, sometimes called a pile or serial file is the simplest type of file
organization, records are placed in the file in the same order as they were
inserted
An index structure is associated with a search key and contains records
consisting of the key value and the address of the logical record
A sorted data file with a primary index is called an indexed sequential file
The file containing the logical records is called the data file and the file
containing the index records is called the index file. The values in the
index file are ordered according to the indexing field.
Kavungya answered the question on June 25, 2019 at 08:16
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The diagram below represents the essential features of a computer
system. Study the diagram and answer the questions that follow:
(a) Name the components: A B C...
(Solved)
The diagram below represents the essential features of a computer
system. Study the diagram and answer the questions that follow:
(a) Name the components: A B C D
(b) Name the three types of buses in a computer system
(c) Explain how the CPU registers may be used to carry out a basic calculation
such as 2 + 7 = 9
(d) Name two computers output devices
Date posted:
June 25, 2019
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Answers (1)
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A program is required to list the first 1000 numbers in the series 2, 4, 6, 8, 10 ……. Draw a flowchart and write a...
(Solved)
A program is required to list the first 1000 numbers in the series 2, 4, 6, 8, 10 ……. Draw a flowchart and write a program that can be carry out this task
Date posted:
June 25, 2019
.
Answers (1)
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Define a Pseudo code.
(Solved)
Define a Pseudo code.
Date posted:
June 25, 2019
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Answers (1)
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Name two DOS commands that may be used for checking disk errors
(Solved)
Name two DOS commands that may be used for checking disk errors
Date posted:
June 25, 2019
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Answers (1)
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Give one difference between internal and external commands in Disk Operating System
(Solved)
Give one difference between internal and external commands in Disk Operating System
Date posted:
June 25, 2019
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Answers (1)
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Define the term application Software.
(Solved)
Define the term application Software.
Date posted:
June 25, 2019
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Answers (1)
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List any four tasks that an electronic spreadsheet should be able to perform other than calculations.
(Solved)
List any four tasks that an electronic spreadsheet should be able to perform other than calculations.
Date posted:
June 25, 2019
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Answers (1)
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The first column in the table below contains the formulae as stored into the
cell F10 of a spreadsheet. Enter the formulae, as they would appear...
(Solved)
The first column in the table below contains the formulae as stored into the
cell F10 of a spreadsheet. Enter the formulae, as they would appear when
copied to the cell M20 of the same spreadsheet.
Date posted:
June 25, 2019
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Answers (1)
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List any four high level programming languages
(Solved)
List any four high level programming languages
Date posted:
June 25, 2019
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Answers (1)
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Compare the two types of diskettes used in microcomputers in terms of physical size and densities.
(Solved)
Compare the two types of diskettes used in microcomputers in terms of physical size and densities.
Date posted:
June 25, 2019
.
Answers (1)
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Andrew, Jane, David and Zablon had tea, sausages and bananas for
breakfast. They took one sausage, two sausages, three sausages and one sausage
respectively. In addition, they...
(Solved)
Andrew, Jane, David and Zablon had tea, sausages and bananas for
breakfast. They took one sausage, two sausages, three sausages and one sausage
respectively. In addition, they took a cup of tea and two bananas. Tea, sausages
and bananas cost Kshs 10, 15 and 5 respectively.
By naming columns A, B, C … and rows 1, 2, 3 …………….
(a) Construct a worksheet showing the above information
(b) State the expression you would use to obtain:
(i) Total expenditure by David
(ii) Total number of sausages taken
(iii) The cost of the cheapest item
Date posted:
June 25, 2019
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Answers (1)
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Define Optical fibre cables.
(Solved)
Define Optical fibre cables.
Date posted:
June 25, 2019
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Answers (1)
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Give one advantage and one disadvantage of coaxial cables.
(Solved)
Give one advantage and one disadvantage of coaxial cables.
Date posted:
June 25, 2019
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Answers (1)
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Give one advantage and one disadvantage of twisted pair cables.
(Solved)
Give one advantage and one disadvantage of twisted pair cables.
Date posted:
June 25, 2019
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Answers (1)
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A program is required for reading in a student’s name and scores obtained in two
subjects. The output of the program will consist of the student’s...
(Solved)
A program is required for reading in a student’s name and scores obtained in two
subjects. The output of the program will consist of the student’s name, the two
scores, the average of the two scores and comment. The comment is based on the
average as follows:
Write a program to solve the problem using a high level language.
Date posted:
June 25, 2019
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Answers (1)
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What is the use of the search? Replace future in a word-processor.
(Solved)
What is the use of the search? Replace future in a word-processor.
Date posted:
June 25, 2019
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Answers (1)
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Define Optical Mark Reader (OMR).
(Solved)
Define Optical Mark Reader (OMR).
Date posted:
June 25, 2019
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Answers (1)
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List the steps that you would use to correct wrongly spelt words in a document using the spell-checking feature.
(Solved)
List the steps that you would use to correct wrongly spelt words in a document using the spell-checking feature.
Date posted:
June 25, 2019
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Answers (1)
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Differentiate between primary memory and secondary memory.
(Solved)
Differentiate between primary memory and secondary memory.
Date posted:
June 25, 2019
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Answers (1)
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Briefly explain any two advantages and two disadvantages of using a database
(Solved)
Briefly explain any two advantages and two disadvantages of using a database
Date posted:
June 25, 2019
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Answers (1)