Computer studies analysis of questions and answers

Some of the storage disk available are: zip disks, 3 ½ inch floppy disks, DVDs and 5 ¼ inch floppy disks. Arrange these devices in ascending order of storage capacity.

29/12/2020

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Some of the storage disk available are: zip disks, 3 ½ inch floppy disks, DVDs and 5 ¼ inch floppy disks. Arrange these devices in ascending order of storage capacity.

5 1/4 inch floppy disks, 3 1/2 inch floppy disks, Zip disks ,DVDs.

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List four ways of acquiring software in an organization

29/12/2020

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List four ways of acquiring software in an organization

Buy Off-the-shelf package - This can be sold through retail outlets without any direct contact between the software developer and the customer.
Customized software applications - The software developer builds an application that meets the needs of the customer as defined in a specification.
Lease or Rent software.
Freeware/Shareware

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Define authenticity as used in software selection

29/12/2020

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Define authenticity as used in software selection

This refers to the gem4ineness/originality/licensed software. Software that is not pirated.
The software is not counterfeit and customers are able to confirm that they have the real thing. Software integrity, authenticity and security together form a sound basis for confidence that software is free from intentional and unintentional vulnerabilities and that the software functions as intended.https://safecode.org

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Jane has noticed the following problems in her computer keyboard

29/12/2020

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Jane has noticed the following problems in her computer keyboard

It is taking longer time to start up;
It is often hanging;
Applications are taking longer to load.

State three possible causes of these problems and how they can be solved

a) Disk is fragmented - Defragment the disk by running the defragment utility. "
b) Virus/bug infection - run the antivirus utility
c) Capacity of RAM is small- Increase the size by replacing the existing chip with a higher capacity RAM chip.
d) Processor speed is low - Replace processor with a high speed processor.

Jane has noticed the following problems in her computer keyboard

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State the functions of the following keys on the computer keyboard; Backspace and Insert (ins)

29/12/2020

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State the functions of the following keys on the computer keyboard; Backspace and Insert (ins)

Backspace – to delete a character to the left of the cursor
Insert (ins) – when the key is depressed editing is in overtype mode. Any new text typed in the middle of a line is inserted between existing text while the existing text disappears/is deleted.

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Describe the computer booting process.

29/12/2020

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Describe the computer booting process.

The internal power supply turns on and initializes.
The BIOS performs the power-on self test (POST). If there are any fatal errors, the boot process stops
The BIOS the looks for other devices’ ROMS to see if any of them have BIOSEs. Normally, the IDE/Ata hard disk BIOs will be found and executed. If any other device BIOSes are found, they are executed as well
The BIOS begins the search for a drive to boot from
Having identified its target boot drive, the BIOS looks for boot information to start the operating system boot process

ANALYSIS OF KCSE COMPUTER STUDIES TOPICAL QUESTIONS & REVISION KITS

Some of the storage disk available are: zip disks, 3 ½ inch floppy disks, DVDs and 5 ¼ inch floppy disks. Arrange these devices in ascending order of storage capacity.

Some of the storage disk available are: zip disks, 3 ½ inch floppy disks, DVDs and 5 ¼ inch floppy disks. Arrange these devices in ascending order of storage capacity.

List four ways of acquiring software in an organization

List four ways of acquiring software in an organization

Define authenticity as used in software selection

Define authenticity as used in software selection

Jane has noticed the following problems in her computer keyboard

Jane has noticed the following problems in her computer keyboard

State the functions of the following keys on the computer keyboard; Backspace and Insert (ins)

State the functions of the following keys on the computer keyboard; Backspace and Insert (ins)

Describe the computer booting process.

Describe the computer booting process.

Study the flowchart below and answer the questions that follow.

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