• Parallel running is where both the old and the new systems are run in parallel to each other (a the same time) for sometime until users have gained confidence in the new system. Data is processed on both systems in order to compare their performance, and also cross-check the results.
• Direct changeover is a complete replacement of the old system with the new system in one bold move. The old system is stopped & abandoned and the new system starts operating immediately.
Kavungya answered the question on June 5, 2019 at 11:41
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Give two disadvantages of direct changeover over parallel running.
(Solved)
Give two disadvantages of direct changeover over parallel running.
Date posted:
June 5, 2019
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Answers (1)
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Mention any two advantages of running both the manual system and the computerized system simultaneously.
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Mention any two advantages of running both the manual system and the computerized system simultaneously.
Date posted:
June 5, 2019
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Differentiate between a modem and a multiplexer.
Date posted:
June 5, 2019
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Distinguish between bounded and unbounded transmission media, giving two examples in each.
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June 5, 2019
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Name the type of processing that would be required by a payroll system.
Date posted:
June 5, 2019
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Give the ways of controlling carelessness as a threat to the safety of computer system.
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Give the ways of controlling carelessness as a threat to the safety of computer system.
Date posted:
June 5, 2019
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Give reasons why optical disks are better storage media compared to floppy diskettes
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Give reasons why optical disks are better storage media compared to floppy diskettes
Date posted:
June 5, 2019
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Answers (1)
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A computer specification has the following details:
Pentium II
1.44 MB floppy disk drive
20 GB hard disk
Full multimedia
17” SVGA monitor
Pre installed operating system
Pre- installed office suite
(a) What...
(Solved)
A computer specification has the following details:
Pentium II
1.44 MB floppy disk drive
20 GB hard disk
Full multimedia
17” SVGA monitor
Pre installed operating system
Pre- installed office suite
(a) What is meant by?
(i) 1.44 MB floppy disk drive?
(ii) 20 GB hard disk?
(iii) 17” SVGA monitors
(b) Which operating system might be pre- installed in this computer and why?
Date posted:
June 5, 2019
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Answers (1)
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With reasons, briefly describe the most appropriate type of printer or output device for the output of:
(i) Customer invoices on multi- part stationery
(ii) Letters...
(Solved)
With reasons, briefly describe the most appropriate type of printer or output device for the output of:
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(iii) Detailed engineering designs
Date posted:
June 5, 2019
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Answers (1)
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(Solved)
Differentiate between Dry run and walkthrough.
Date posted:
June 5, 2019
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Answers (1)
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Draw a labeled diagram to illustrate the internal structure of a diskette.
(Solved)
Draw a labeled diagram to illustrate the internal structure of a diskette.
Date posted:
June 5, 2019
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Give two differences between post Office Mail electronic mail ( E- mail)
Date posted:
June 5, 2019
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Bidii wholesalers has two categories of customers for order processing, category ‘A’ obtains 10% discount on all orders up to Kshs 10,000 otherwise the discount...
(Solved)
Bidii wholesalers has two categories of customers for order processing, category ‘A’ obtains 10% discount on all orders up to Kshs 10,000 otherwise the discount is 20% on the entire order. Category “B’ obtains 30% discount on all orders if the debt repayment is ‘good’ otherwise the discount is 15%. Draw a flowchart for the order processing
Date posted:
June 5, 2019
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Answers (1)
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Explain three ways by which computer users can protect their eyes from harmful emissions from the computer screen
(Solved)
Explain three ways by which computer users can protect their eyes from harmful emissions from the computer screen
Date posted:
June 5, 2019
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Answers (1)
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A school bought a computer system. The hardware items supplied include: a 800 MHz processor, 64 MB of RAM, a sound card, speakers, a monitor,...
(Solved)
A school bought a computer system. The hardware items supplied include: a 800 MHz processor, 64 MB of RAM, a sound card, speakers, a monitor, a keyboard, a 120 GB hard disk, a floppy disk drive, a CD – Read/ write drive, a mouse, a modem, an inkjet printer and a joystick.
The software supplied include: an operating system, a BASIC interpreter and the following packages: spreadsheets, graphics, word processor, art, database and games
(a) List three input devices from the given specifications
(b) Explain the meaning of the following
(i) 800 MHZ
(ii) 64 MB of RAM
(iii) 120 GB hard disk
(c) Some of the students in the school use the computer to do homework. Name the package used to:
(i) Do calculations and draw graphs
(ii) Write an essay
(iii) Make a poster
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(ii) Which input device is only used for playing games?
Date posted:
June 5, 2019
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Answers (1)
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A school organizes its work in directories. The director WP contains the files CATS, EXAMS and ASSIGNMENTS. The directory of SP contain the spreadsheet files....
(Solved)
A school organizes its work in directories. The director WP contains the files CATS, EXAMS and ASSIGNMENTS. The directory of SP contain the spreadsheet files. The directory DB contains the database files. The directory PROG is contained in the OTHERS directory. The directory WP also contains the PERSONAL directory. Given that the directory STUDENT contains directories SP, DB, WP and OTHERS
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Date posted:
June 5, 2019
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Answers (1)
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Write the path for the directory PROG
(Solved)
Write the path for the directory PROG
Date posted:
June 5, 2019
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Answers (1)
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Give two reasons for storing files in directories and subdirectories
(Solved)
Give two reasons for storing files in directories and subdirectories
Date posted:
June 5, 2019
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Answers (1)
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For each of the following give one reason why they are not allowed in a computer laboratory
(i) Smoking
(ii) Eating foods
(Solved)
For each of the following give one reason why they are not allowed in a computer laboratory
(i) Smoking
(ii) Eating foods
Date posted:
June 5, 2019
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Answers (1)
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A serial file comprises of records placed in positions 1 to 10. State the position of the end of the file market.
(Solved)
A serial file comprises of records placed in positions 1 to 10. State the position of the end of the file market.
Date posted:
June 5, 2019
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Answers (1)