Computer studies analysis of questions and answers

Advantages of online application services and shared processing resources.

5/1/2021

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Some computer companies have opted to use the Internet to provide shared processing resources and online application services to users. State three advantages that this approach will have on their customers. (3 marks)

Advantages of online application services and shared processing resources.

Users will not be required to have powerful processing devices;
Users can access the services from anywhere in the world;
Users can access services at any time (24/7);
Users can offload their data to the cloud infrastructure;
Users can collaborate with remote users to process the data;
The approach will cut out high cost of hardware;
Sharing of resources;
Faster access to service;
Cost effective;
Orders are made without going to the shop.

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State the function of each of the following features in a word processor application:

5/1/2021

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State the function of each of the following features in a word processor application:

(a) Thesaurus. (1 mark)
It is a feature in a word processor that suggest words with similar or opposite meaning to the selected word @1.
(b) Comments (1 mark)
It is a feature in WP that allows a user to attach a remark about the selection @1.

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In a spreadsheet the formula =If(AI>10, A1 77, A150) is entered in a cell. Interpret the results

5/1/2021

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In a spreadsheet the formula =If(AI>10, A1 77, A150) is entered in a cell. Interpret the results. (3 marks)

=If(A1>10,A1 *77,A1 *50)
Compares the value in cell Al ¡fit is greater than 10, if comparison is True, the results of operations Al * 77 is displayed, if it is False the results of the operations A1 * 50 is displayed.

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The figure shows a network design. Use it to answer the questions that follow

4/1/2021

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(a) The figure shows a network design. Use it to answer the questions that follow.

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Describe each of the following validation checks as used in data processing

4/1/2021

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(a) Describe each of the following validation checks as used in data processing:

(i) Preserve check

It is a measure placed used to ensure that data item is in its original status.

(ii) Data type check

It is a measure that ensures that correct data type is entered for each field.

(iii) Check digit

This is a number calculated by the computer to make sure that the other numbers in a sequence have been entered properly.

Describe each of the following validation checks as used in data processing:

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State four activities of the planning stage of systems development

4/1/2021

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(a) State four activities of the planning stage of systems development. (4 marks)

Activities at the planning stages

Identify opportunity for the new project.
Analyse feasibility to establish the viability of the project.
Develop a work plan.
Identify appropriate staff to work in the project.
Control and direct the project.

State four activities of the planning stage of systems development

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Explain the term search engine as used in the Internet

4/1/2021

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(a) (1) Explain the term search engine as used in the Internet. (2 marks)

(i) Search-engine
It is a web-based application used to locate for an item or information from world wide web.

(ii) Peter intends to download a movie from the Internet. State the three factors that may determine the total time taken to complete the download. (3 marks)

Factors that affects duration of download

The size of the video
The band width of the media used
Availability of network
Other activities that may be running in the computer.
Other restrictions enforced in the computer
The restrictions by the ISP
Speed of computer

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With the aid of a flow chart, describe a loop control structure as used in programming.

4/1/2021

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(a) With the aid of a flow chart, describe a loop control structure as used in programming. (4 marks)

Looping is the control structure that allows a block of code/statements to be repeated until a certain condition is fulfilled. (2 marks)

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State a stage in systems development life cycle where each of the following activities are carried out:

4/1/2021

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State a stage in systems development life cycle where each of the following activities are carried out:

(a) indenting the technologies that may be used in a proposed system; (1 mark)
System analysis/information gathering/problem recognition

(b) indenting shortcomings of a system; (1 mark)
Problem definition

(c) preparing the system migration plan. (I mark)
Implementation stage

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State four computer based careers introduced as a result of computerized data process method at the airport.

4/1/2021

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State four computer based careers introduced as a result of computerized data process method at the airport. (2 marks)

Computer based careers created by introducing computerized data processing.

System analysts
Hardware technicians
Data entry clerks
Programmers
Networks technicians
Database administrators
Web designers
Network administrator

State four computer based careers introduced as a result of computerized data process method at the airport

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Explain the function of protect sheet feature in a spreadsheet program

4/1/2021

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Explain the function of protect sheet feature in a spreadsheet program. (2 marks)

Function of protect sheet:

It is a feature used to prevent unwanted changes to be made on the data contained in a sheet by limit the ability to make changes.

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Distinguish between real-time operating system and distributed operating system.

4/1/2021

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Distinguish between real-time operating system and distributed operating system. (3 marks)

Distinction between real-time and distributed OS.
Real-time OS reads information from input devices and must respond within a short duration of time to ensure correct performance.
Distributed OS distributes computation among several physical processors which do not share memory or clock.

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With the aid of an example, explain the term multi-level list as used in word processing

4/1/2021

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With the aid of an example, explain the term multi-level list as used in word processing. (3 marks)

Multilevel list:
It is a format style that shows the listed items of different levels rather than one at one level. Each level has different indentation and numbering style @2.

Example (Accept any)
1. Chapter One
1.1 Introduction
1.1.1 Definition of terms @1

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A law firm prefers to use hard Copy Output over soft Copy Output when handling documents for legal matters State two reasons for this preference

4/1/2021

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A law firm prefers to use hard Copy Output over soft Copy Output when handling documents for legal matters State two reasons for this preference (2 marks)

Advantages of hard copy output.

They are acceptable as exhibit in cases of litigation.
Can be used without a computer.
They are difficult to change without leaving any trace.
They can be used without power.
They can be used without the experience of computer usage.

A law firm prefers to use hard Copy Output over soft Copy Output when handling documents for legal matters State two reasons for this preference

Printer

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State three Ways in which an operating System Secures a Computer System.

4/1/2021

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State three Ways in which an operating System Secures a Computer System.

Ways in which an OS secures computer system:

Access controls: Authentication of users in order to access files;
Performing regular patches of updates;
Creating secure accounts with required privileges;
Scrutinizing all incoming and outgoing packets of data through a firewall;
Encryption of data, during the transmission stage;
Password I biometric analysis;
Log files to detect any breach.

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State three possible reasons for the extinction of daisy wheel printers in the market

4/1/2021

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State three possible reasons for the extinction of daisy wheel printers in the market. (3 marks)

Reasons why daisy wheel printer are in extinct.

They supported one font size and font face;
They were monochrome printers;
They produced noise while printing;
They were very slow;
Did not print graphics.
Had poor print quality.

daisy wheel printer

State three advantage of flat panel monitors over cathode ray tube monitors as used in computers

4/1/2021

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State three advantage of flat panel monitors over cathode ray tube monitors as used in computers. (3 marks)

Advantages of flat panel monitors.

They are compact and light weight;
They consume less power;
They do not suffer from geometrical distortions;
They do not cause eye fatigue.
They support many advanced technologies;
They can be made in almost any size and shape;
They support higher resolution.
Low heat radiation.

Cathode Ray Tube (CRT) Monitors

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State three ways in which barcode readers may be used in schools

4/1/2021

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State three ways in which barcode readers may be used in schools. (3 marks)

Ways in which barcode readers can be used in a school.

To take inventory of items in the school.
To keep track of employee login log out.
Used to transact business in the library.
Used to keep track of movement of goods.

Barcode

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State three measures that should be put in place in a computer laboratory to safeguard Users’ health.

4/1/2021

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State three measures that should be put in place in a computer laboratory to safeguard Users’ health. (3 marks)

Measures to be put in place in the laboratory to safeguard user health.

All power cables must be insulated and hidden from users.
The furniture used must be of standard computer furniture.
The room should be lit with adequate lighting.
The room must be ventilated.
Computer monitor should be fitted with anti-glare to filter excess light rays emanating from the monitor.
Avoid slippery floors/cemented floors.
Controlling dust.

Anti-glare-filter-protection-screen-computer

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Computer network technicians prefer to use command line based operating system when configuring networks. State three reasons for the preference

4/1/2021

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Computer network technicians prefer to use command line based operating system when configuring networks. State three reasons for the preference. (3 marks)

Reasons for the use of command — line interface OS

They do not take up a lot of memory hence boot faster than the GUI OS.
They have direct access or most hardware devices.
They are cheaper to acquire as some can be downloaded free of charge.
They can run on lower —bit hardware systems such as 32-bit computers.

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State two reasons for the increased use of laptop computers in government offices

4/1/2021

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State two reasons for the increased use of laptop computers in government offices. (2 marks)

Reasons for the preference for laptops.

They are small and fit in a small storage space.
They are light weight hence can be carried to areas where their services are required.
The monitor, system unit, keyboard units are attached together hence making its use to be convenient.
Rechargeable / backup battery.

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FREE KCSE PAST PAPERS 2018: COMPUTER STUDIES FORM 1 QUESTIONS AND ANSWERS

31/8/2019

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FREE KCSE PAST PAPERS 2018: COMPUTER STUDIES FORM 1 QUESTIONS AND ANSWERS

This category comprises of KCSE 2018 computer studies questions and answers for form that featured in that year.

Question 1

Topic: Introduction to computers (Classification of Computers)

State two reasons for the increased use of laptop computers in government offices. (2 marks)

They are small and fit in a small storage space.
They are light weight hence can be carried to areas where their services are required.
The monitor, system unit, keyboard units are attached together hence making its use to be convenient.
Rechargeable / backup battery.

Marking Tips:

Any of these or correct answer had 1 mark each.
Any of the two correct answers regardless of the arrangement scored 2 marks.

Question 2

Computer network technicians prefer to use command-line based operating system when configuring networks. State three reasons for the preference. (3 marks)

Topic: The Operating System (HCI - Human Computer Interface)

They do not take up a lot of memory hence boot faster than the GUI OS.
They have direct access or most hardware devices.
They are cheaper to acquire as some can be downloaded free of charge.
They can run on lower —bit hardware systems such as 32-bit computers.

Marking Tips:

Any of these or correct answer had 1 mark each.
Any of the three correct answers regardless of the arrangement scored 3 marks.

FREE KCSE PAST PAPERS 2018: COMPUTER STUDIES FORM 1 QUESTIONS AND ANSWERS

Question 3

State three measures that should be put in place in a computer laboratory to safeguard users’ health. (3 marks)

Topic: Introduction to Computers (The Computer Laboratory)

All power cables must be insulated and hidden from users.
The furniture used must be of standard computer furniture.
The room should be lit with adequate lighting.
The room must be ventilated.
Computer monitor should be fitted with antiglare to filter excess light rays emanating from the monitor.
Avoid slippery floors/cemented floors.
Controlling dust.

Marking Tips:

Any of these or correct answer had 1 mark each.
Any of the three correct answers regardless of the arrangement scored 3 marks.

Question 4

State three ways in which barcode readers may be used in schools. (3 marks)

Topic: The Computer System (Hardware/Input Devices)

To take inventory of items in the school.
To keep track of employee login log out.
Used to transact business in the library.
Used to keep track of movement of goods.

Marking Tips:

Any of these or correct answer had 1 mark each.
Any of the three correct answers regardless of the arrangement scored 3 marks.

Question 5

State three advantage of flat panel monitors over cathode ray tube monitors as used in computers. (3 marks)

Topic: The Computer System (Hardware/Output Devices)

They are compact and light weight;
They consume less power;
They do not suffer from geometrical distortions;
They do not cause eye fatigue.
They support many advanced technologies;
They can be made in almost any size and shape;
They support higher resolution.
Low heat radiation.

Marking Tips:

Any of these or correct answer had 1 mark each.
Any of the three correct answers regardless of the arrangement scored 3 marks.

Question 6

State three possible reasons for the extinction of daisy wheel printers in the market. (3 marks)

Topic: The Computer System (Hardware/Output Devices)

They supported one font size and font face;
They were monochrome printers;
They produced noise while printing;
They were very slow;
Did not print graphics.
Had poor print quality.

Marking Tips:

Any of these or correct answer had 1 mark each.
Any of the three correct answers regardless of the arrangement scored 3 marks.

Question 7

State three ways in which an operating system secures a computer system. (3 mark)

Topic: The Operating System (Functions of the Operating System)

Access controls: Authentication of users in order to access files;
Performing regular patches of updates;
Creating secure accounts with required privileges;
Scrutinizing all incoming and outgoing packets of data through a firewall;
Encryption of data, during the transmission stage;
Password / biometric analysis;
Log files to detect any breach.

Marking Tips:

Any of these or correct answer had 1 mark each.
Any of the three correct answers regardless of the arrangement scored 3 marks.

Question 8

A law firm prefers to use hard copy output over soft copy output when handling documents for legal matters. State two reasons for this preference. (2 marks)

Topic: The Computer System (Hardware/Output Devices)

They are acceptable as exhibit in cases of litigation.
Can be used without a computer.
They are difficult to change without leaving any trace.
They can be used without power.
They can be used without the experience of computer usage.

Marking Tips:

Any of these or correct answer had 1 mark each.
Any of the two correct answers regardless of the arrangement scored 2 marks.

Question 11

Distinguish between real-time operating system and distributed operating system. (3 marks)

Topic: The Operating System (Types of the Operating System) also check relevance in form 3 under Data processing (electronic data processing modes)

Real-time OS reads information from input devices and must respond within a short duration of time to ensure correct performance.
Distributed OS distributes computation among several physical processors which do not share memory or clock.

Marking Tips:

Three marks for clear differences between real-time and distributed OS

Analysis of form 1 questions in kcse 2018 computer studies paper 1

Weight of form 1 marks vs total marks in KCSE 2018 computer studies paper 1

25 marks were carried from form 1 representing 25% of all paper 1 marks

Weight of form marks vs total marks in KCSE 2018 computer studies paper 1

How marks were distributed across all form 1 topics

There are only three topics in form 1. Namely:

Introduction to Computers - 5 marks
The Computer System - 11 marks
The Operating System - 9 marks

% distribution of marks across all form 1 topics

Advice to Users

Put more emphasis on those topics that carried bulky marks especially I/O devices under the computer system topic.

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​Some computer companies have opted to use the Internet to provide shared processing resources and online application services to users. State three advantages that this approach will have on their customers. (3 marks)

​​State the function of each of the following features in a word processor application:

​​In a spreadsheet the formula =If(AI>10, A1 *77, A1*50) is entered in a cell. Interpret the results. (3 marks)

​(a) The figure shows a network design. Use it to answer the questions that follow.

​(a) Describe each of the following validation checks as used in data processing:

(i) Preserve check

(ii) Data type check

(iii) Check digit

​​(a) State four activities of the planning stage of systems development. (4 marks)

​​(a) (1) Explain the term search engine as used in the Internet. (2 marks)

​(a) With the aid of a flow chart, describe a loop control structure as used in programming. (4 marks)

​State a stage in systems development life cycle where each of the following activities are carried out:

​State four computer based careers introduced as a result of computerized data process method at the airport. (2 marks)

​Explain the function of protect sheet feature in a spreadsheet program. (2 marks)

Distinguish between real-time operating system and distributed operating system. (3 marks)

​​With the aid of an example, explain the term multi-level list as used in word processing. (3 marks)

​A law firm prefers to use hard Copy Output over soft Copy Output when handling documents for legal matters State two reasons for this preference (2 marks)

​State three Ways in which an operating System Secures a Computer System.

​​State three possible reasons for the extinction of daisy wheel printers in the market. (3 marks)

Related Searches

​​State three advantage of flat panel monitors over cathode ray tube monitors as used in computers. (3 marks)

​​State three ways in which barcode readers may be used in schools. (3 marks)

​​State three measures that should be put in place in a computer laboratory to safeguard Users’ health. (3 marks)

​Computer network technicians prefer to use command line based operating system when configuring networks. State three reasons for the preference. (3 marks)

​State two reasons for the increased use of laptop computers in government offices. (2 marks)

​FREE KCSE PAST PAPERS 2018: COMPUTER STUDIES FORM 1 QUESTIONS AND ANSWERS

State two reasons for the increased use of laptop computers in government offices. (2 marks)

Computer network technicians prefer to use command-line based operating system when configuring networks. State three reasons for the preference. (3 marks)

State three measures that should be put in place in a computer laboratory to safeguard users’ health. (3 marks)

State three ways in which barcode readers may be used in schools. (3 marks)

State three advantage of flat panel monitors over cathode ray tube monitors as used in computers. (3 marks)

State three possible reasons for the extinction of daisy wheel printers in the market. (3 marks)

State three ways in which an operating system secures a computer system. (3 mark)

A law firm prefers to use hard copy output over soft copy output when handling documents for legal matters. State two reasons for this preference. (2 marks)

Distinguish between real-time operating system and distributed operating system. (3 marks)

Analysis of form 1 questions in kcse 2018 computer studies paper 1

Weight of form 1 marks vs total marks in KCSE 2018 computer studies paper 1

How marks were distributed across all form 1 topics

Advice to Users

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Some computer companies have opted to use the Internet to provide shared processing resources and online application services to users. State three advantages that this approach will have on their customers. (3 marks)

State the function of each of the following features in a word processor application:

In a spreadsheet the formula =If(AI>10, A1 77, A150) is entered in a cell. Interpret the results. (3 marks)

(a) The figure shows a network design. Use it to answer the questions that follow.

(a) Describe each of the following validation checks as used in data processing:

(a) State four activities of the planning stage of systems development. (4 marks)

(a) (1) Explain the term search engine as used in the Internet. (2 marks)

(a) With the aid of a flow chart, describe a loop control structure as used in programming. (4 marks)

State a stage in systems development life cycle where each of the following activities are carried out:

State four computer based careers introduced as a result of computerized data process method at the airport. (2 marks)

Explain the function of protect sheet feature in a spreadsheet program. (2 marks)

With the aid of an example, explain the term multi-level list as used in word processing. (3 marks)

A law firm prefers to use hard Copy Output over soft Copy Output when handling documents for legal matters State two reasons for this preference (2 marks)

State three Ways in which an operating System Secures a Computer System.

State three possible reasons for the extinction of daisy wheel printers in the market. (3 marks)

State three advantage of flat panel monitors over cathode ray tube monitors as used in computers. (3 marks)

State three ways in which barcode readers may be used in schools. (3 marks)

State three measures that should be put in place in a computer laboratory to safeguard Users’ health. (3 marks)

Computer network technicians prefer to use command line based operating system when configuring networks. State three reasons for the preference. (3 marks)

State two reasons for the increased use of laptop computers in government offices. (2 marks)

FREE KCSE PAST PAPERS 2018: COMPUTER STUDIES FORM 1 QUESTIONS AND ANSWERS