– The barcode reader (wand) is passed over the item’s barcode. The barcode is automatically converted into the item number which is read to the computer.
-Using the item number, the computer searches for the item with a corresponding number in the products database
-The record is retrieved and its description and price in the reference file is used for processing sales and a receipt is eventually printed.
maurice.mutuku answered the question on November 7, 2019 at 08:56
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What are repetitive strain injuries?
(Solved)
What are repetitive strain injuries?
Date posted:
November 7, 2019
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Answers (1)
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A trader uses a spreadsheet program to calculate profits.
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
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Answers (1)
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Give three hardware considerations that should be made before installing an operating system.
(Solved)
Give three hardware considerations that should be made before installing an operating system.
Date posted:
November 7, 2019
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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.
(Solved)
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
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Answers (1)
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Fifth generation computers are said to be characterized by the emergence of artificial intelligence.
Explain.
(Solved)
Fifth generation computers are said to be characterized by the emergence of artificial intelligence.
Explain.
Date posted:
November 7, 2019
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Answers (1)
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Draw a diagram to show a system that is controlled through feedback.
(Solved)
Draw a diagram to show a system that is controlled through feedback.
Date posted:
November 6, 2019
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Answers (1)
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Why is feedback necessary in a system?
(Solved)
Why is feedback necessary in a system?
Date posted:
November 6, 2019
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Answers (1)
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Explain the following system characteristics
(i) System control
(ii) Sub-systems
(Solved)
Explain the following system characteristics
(i) System control
(ii) Sub-systems
Date posted:
November 6, 2019
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Answers (1)
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Explain the difference between Trojan horse and Hoax viruses.
(Solved)
Explain the difference between Trojan horse and Hoax viruses.
Date posted:
November 6, 2019
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Answers (1)
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Computer can fail to work due to problems associated with operating system. Explain how the following problems can be corrected.
(i) Run time problems
(ii) Corrupted...
(Solved)
Computer can fail to work due to problems associated with operating system. Explain how the following problems can be corrected.
(i) Run time problems
(ii) Corrupted registry
Date posted:
November 6, 2019
.
Answers (1)
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State the meaning of the following operating systems terms:
(i) Interrupt
(ii) Trouble shooting.
(iii) Clock speed.
(Solved)
State the meaning of the following operating systems terms:
(i) Interrupt
(ii) Trouble shooting.
(iii) Clock speed.
Date posted:
November 6, 2019
.
Answers (1)
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Differentiate between a word and a word length as used in data representation.
(Solved)
Differentiate between a word and a word length as used in data representation.
Date posted:
November 6, 2019
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Answers (1)
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Using one's complement, perform the following binary arithmetic leaving the answer in decimal notation.
11012 - 1001012
(Solved)
Using one's complement, perform the following binary arithmetic leaving the answer in decimal notation.
11012 - 1001012
Date posted:
November 6, 2019
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Answers (1)
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Using two's complement, show how the arithmetic below would be carried out on a 8 – bit computer system. (+54) – (+29).
(Solved)
Using two's complement, show how the arithmetic below would be carried out on a 8 – bit computer system. (+54) – (+29).
Date posted:
November 6, 2019
.
Answers (1)
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A car rental firm leases its cars for Kshs. 2500.00 per day. The manager gives a discount based on the number of days that the...
(Solved)
A car rental firm leases its cars for Kshs. 2500.00 per day. The manager gives a discount based on the number of days that the car is rented. If the rental period is greater than or equals to 7 days then a 25% discount is given. Write a pseudo-code to accept a car number and the rental period, and calculate the total amount earned by the company when a car is leased.
Date posted:
November 6, 2019
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Answers (1)
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Give one reason to the growth of communication industry in Kenya.
(Solved)
Give one reason to the growth of communication industry in Kenya.
Date posted:
November 6, 2019
.
Answers (1)
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Define the following terms as used in a worksheet.
i) Columns
ii) Rows
(Solved)
Define the following terms as used in a worksheet.
i) Columns
ii) Rows
Date posted:
November 6, 2019
.
Answers (1)
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State the cursor action when the following keyboard keys are pressed
i. Delete key
ii. Insert key
iii. Pgup (page up) key
iv. Pgdwn (page down) key
(Solved)
State the cursor action when the following keyboard keys are pressed
i. Delete key
ii. Insert key
iii. Pgup (page up) key
iv. Pgdwn (page down) key
Date posted:
November 6, 2019
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Answers (1)
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State any two laws governing protection of information.
(Solved)
State any two laws governing protection of information.
Date posted:
November 6, 2019
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Answers (1)
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State the function of an Address register.
(Solved)
State the function of an Address register.
Date posted:
November 6, 2019
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Answers (1)