Computer studies analysis of questions and answers

Describe virtual reality as used in computers

3/3/2021

Describe virtual reality as used in computers. (2 marks)

Virtual Reality is the computer generated simulation of a three-dimensional
image or environment that can be interacted with in a seemingly real or physical way by a person using a specialized electronic head gear,

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State three ways of transforming a picture embedded in a Desktop Publishing programme in order to fit in a designated space on a document. (3 marks)

3/3/2021

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State three ways of transforming a picture embedded in a Desktop Publishing programme in order to fit in a designated space on a document. (3 marks)

Ways of transforming a picture in a DTP

Rotation
Flipping
Cropping
Stretching

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Differentiate between a line printer and a page printer as used in computers

3/3/2021

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Differentiate between a line printer and a page printer as used in computers. (2 marks)

A line printer is an impact printer that prints one entire line of text at a time
while a page printer is a non impact printer that prints a Whole page at a timer

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Identify four tasks that can be achieved using a Desktop Publishing programme from the following list of tasks.

15/1/2021

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Identify four tasks that can be achieved using a Desktop Publishing programme from the following list of tasks.

I. Managing students records in a school
II. Creating a calendar
III. Designing a building structure
IV. Creating a banner
V. Creating a book cover
VI. Processing of examination results
VII. Creating business cards

Creating a calendar.
Creating a banner.
Creating a book cover.
Creating business cards

Identify four tasks that can be achieved using a Desktop Publishing programme from the following list of tasks.

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State two ways through which a computer user can minimise Repetitive Strain Injuries (RSI) associated with the use of a computer.

15/1/2021

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State two ways through which a computer user can minimise Repetitive Strain Injuries (RSI) associated with the use of a computer.

Taking regular break intervals when using a computer.
Use an ergonomic keyboard to avoid stress.
Support wrist with wrist rest pad when using a mouse.
Use of standard furniture/proper sitting posture.

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State two ways in which one can create a password which cannot be easily accessed by hackers.

15/1/2021

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State two ways in which one can create a password which cannot be easily accessed by hackers.

Password which cannot be hacked.

By including many characters in a password
By combining different characters in a password
Use password generator manager.

State two ways in which one can create a password which cannot be easily accessed by hackers.

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A school intends to install wireless media in their communication system. State three advantages of this mode of communication media.

15/1/2021

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A school intends to install wireless media in their communication system. State three advantages of this mode of communication media.

The school will find it easy to add or remove modes on the system.
Incase of new building is put up, there will be no need of interfering with the communication media.
Users will find it safer to move around as there are no wires around the rooms.
Students will be able to roam as they access the network.

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State the spreadsheet function that can be used to obtain each of the following values in a worksheet:

15/1/2021

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State the spreadsheet function that can be used to obtain each of the following values in a worksheet:

(a) Number of cells with values in a column.
(b) Mean of values in a range of cells.

a) =Count ()
b) =Average ()

State the spreadsheet function that can be used to obtain each of the following values in a worksheet:

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Explain two problems associated with the computer hard disk.

15/1/2021

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Explain two problems associated with the computer hard disk.

Problems of computer hard disk

Excessive shock like dropping it on the hard surface may cause the platters to dislocate hence reading may be a problem
Contact with strong magnetic fields or static electricity may affect the device since data is saved magnetically.
If the case containing the platters is opened, dust may get into it causing disk crash,
Some viruses may create virtual tasks which will eventual cause the disk to be overwork hence causing it to crash
Sporadic power failure may cause the disk to crash.

Explain two problems associated with the computer hard disk.

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State the function of each of the following computer keyboard keys when using a word processor:

15/1/2021

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State the function of each of the following computer keyboard keys when using a word processor:

(a) End
(b) Insert
(c) Backspace.

a) End

Used for moving the cursor to the end of the line been typed or already typed.

b) Insert key

Used for changing typing mode from insert mode to type over and vice versa (Accept the description of type over and insertion)

c) Backspace

Used to delete a character to left of the cursor position.

State the function of each of the following computer keyboard keys when using a word processor:

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Explain the term proofreading as used in word processing.

15/1/2021

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Explain the term proofreading as used in word processing.

Meaning of proofreading

It is the process of using appropriate proofing reading like spelling and grammar checkers and autocorrect features to check whether the document has typographical or grammatical errors.

Explain the term proofreading as used in word processing.

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A computer technician has observed a lot of dust on computers in the computer laboratory.

14/1/2021

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A computer technician has observed a lot of dust on computers in the computer laboratory.

State three precautions that need to be put in place to avoid this.

Fit ventilating I air conditioning system to allow free circulation of air.
Fit curtains on the windows / add a curtain net to reduce dust entry into the laboratory.
Regularly use of a blower or vacuum cleaner/mob to blow dust from the computer parts.
Avoid entering the laboratory with materials that may have dust such as shoes.

A computer technician has observed a lot of dust on computers in the computer laboratory.

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The management of an organisation intends to purchase a printer. State three factors that they should consider during the purchase

14/1/2021

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The management of an organisation intends to purchase a printer. State three factors that they should consider during the purchase

Factors to consider when purchasing a printer

Volume of work to be printed.
Maintenance cost below e.g. consumables like toners should be affordable.
Speed of printing.
Type of work to be printed; type of paper, paper size/user needs /range of capability.
Type of printout whether colour is required or not.
Compatibility with the existing hardware
Initial cost
availability of in the market
Portability / physical size

The management of an organisation intends to purchase a printer. State three factors that they should consider during the purchase

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State three characteristics of mainframe computers.

14/1/2021

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State three characteristics of mainframe computers.

Characteristics of mainframe

They have bigger memory capacity.
Have high processing power.
It supports multiprocessing.
Supports large number of users at the same time/ Supports several peripheral devices.
Runs so many applications at the same time.

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Differentiate between home page and web page as used in the Internet.

14/1/2021

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Differentiate between home page and web page as used in the Internet.

Difference between Home page and web page

Home Page
Web Page
It’s the first page that opens when a site is opened using the when the domain name.
It is web document in a website/ Any page on a web.

Differentiate between home page and web page as used in the Internet.

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ANALYSIS OF KCSE COMPUTER STUDIES TOPICAL QUESTIONS & REVISION KITS

Describe virtual reality as used in computers

Describe virtual reality as used in computers. (2 marks)

State three ways of transforming a picture embedded in a Desktop Publishing programme in order to fit in a designated space on a document. (3 marks)

State three ways of transforming a picture embedded in a Desktop Publishing programme in order to fit in a designated space on a document. (3 marks)

Differentiate between a line printer and a page printer as used in computers

Differentiate between a line printer and a page printer as used in computers. (2 marks)

Identify four tasks that can be achieved using a Desktop Publishing programme from the following list of tasks.

Identify four tasks that can be achieved using a Desktop Publishing programme from the following list of tasks.

I. Managing students records in a school
II. Creating a calendar
III. Designing a building structure
IV. Creating a banner
V. Creating a book cover
VI. Processing of examination results
VII. Creating business cards

State two ways through which a computer user can minimise Repetitive Strain Injuries (RSI) associated with the use of a computer.

State two ways through which a computer user can minimise Repetitive Strain Injuries (RSI) associated with the use of a computer.

State two ways in which one can create a password which cannot be easily accessed by hackers.

State two ways in which one can create a password which cannot be easily accessed by hackers.

A school intends to install wireless media in their communication system. State three advantages of this mode of communication media.

A school intends to install wireless media in their communication system. State three advantages of this mode of communication media.

State the spreadsheet function that can be used to obtain each of the following values in a worksheet:

State the spreadsheet function that can be used to obtain each of the following values in a worksheet:

(a) Number of cells with values in a column.
(b) Mean of values in a range of cells.

Explain two problems associated with the computer hard disk.

Explain two problems associated with the computer hard disk.

State the function of each of the following computer keyboard keys when using a word processor:

State the function of each of the following computer keyboard keys when using a word processor:

(a) End
(b) Insert
(c) Backspace.

Explain the term proofreading as used in word processing.

Explain the term proofreading as used in word processing.

A computer technician has observed a lot of dust on computers in the computer laboratory.

A computer technician has observed a lot of dust on computers in the computer laboratory.

State three precautions that need to be put in place to avoid this.

The management of an organisation intends to purchase a printer. State three factors that they should consider during the purchase

The management of an organisation intends to purchase a printer. State three factors that they should consider during the purchase

State three characteristics of mainframe computers.

State three characteristics of mainframe computers.

Differentiate between home page and web page as used in the Internet.

Differentiate between home page and web page as used in the Internet.

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ANALYSIS OF KCSE COMPUTER STUDIES TOPICAL QUESTIONS & REVISION KITS

​Describe virtual reality as used in computers. (2 marks)

​State three ways of transforming a picture embedded in a Desktop Publishing programme in order to fit in a designated space on a document. (3 marks)

​Differentiate between a line printer and a page printer as used in computers. (2 marks)

Identify four tasks that can be achieved using a Desktop Publishing programme from the following list of tasks.

​I. Managing students records in a school II. Creating a calendar III. Designing a building structure IV. Creating a banner V. Creating a book cover VI. Processing of examination results VII. Creating business cards

State two ways through which a computer user can minimise Repetitive Strain Injuries (RSI) associated with the use of a computer.

State two ways in which one can create a password which cannot be easily accessed by hackers.

A school intends to install wireless media in their communication system. State three advantages of this mode of communication media.

State the spreadsheet function that can be used to obtain each of the following values in a worksheet:

(a) Number of cells with values in a column. (b) Mean of values in a range of cells.

Explain two problems associated with the computer hard disk.

State the function of each of the following computer keyboard keys when using a word processor:

(a) End (b) Insert (c) Backspace.

Explain the term proofreading as used in word processing.

A computer technician has observed a lot of dust on computers in the computer laboratory.

State three precautions that need to be put in place to avoid this.

The management of an organisation intends to purchase a printer. State three factors that they should consider during the purchase

State three characteristics of mainframe computers.

Differentiate between home page and web page as used in the Internet.

Categories

Archives

Describe virtual reality as used in computers. (2 marks)

State three ways of transforming a picture embedded in a Desktop Publishing programme in order to fit in a designated space on a document. (3 marks)

Differentiate between a line printer and a page printer as used in computers. (2 marks)

I. Managing students records in a school
II. Creating a calendar
III. Designing a building structure
IV. Creating a banner
V. Creating a book cover
VI. Processing of examination results
VII. Creating business cards

(a) Number of cells with values in a column.
(b) Mean of values in a range of cells.

(a) End
(b) Insert
(c) Backspace.