a) Reasons why the following types of memory are used
(i) Random access memory: (RAM)-is a volatile memory and holds-data as long as the
power is on hence used as a temporary storage when inputting data
(ii) Read only memory:-ROM refers to a storage that can only be read from but not
written to or altered hence used to store valuable information to safeguard against
overwriting or deletion.
b) Three local area Network (LAN) connecting devices
Modem: Converts data from digital form for the sending computer and also from analogue to
digital for the receiving computer
Gateway: Communication processor that connects different networks by providing transaction
from one set of protocol to another
Bridges: device that connects similar networks
c) Difference between ‘serial’ and ‘parallel5 processing
Serial processing is the processing that occurs sequentially, each process occurs one at a time
while parallel processing is the ability to carry out multiple operations or tasks simultaneously.
d) Benefits of secondary storage
- Secondary storage enables the data to be easily transported from one place to another
- Easily affordable and hence can be accessed by many people as compared to the main
memory which is very expensive
- They can be of high security when stored to secondary storage because it is not accessible
to all people
Kavungya answered the question on May 13, 2019 at 12:55
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Describe the following characteristics of computer "memory
i. Mutability
ii. Accessibility
iii. Addressability
iv. Volatility
(Solved)
Describe the following characteristics of computer "memory
i. Mutability
ii. Accessibility
iii. Addressability
iv. Volatility
Date posted:
May 13, 2019
.
Answers (1)
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a. (i) Explain the use of two equipment’s used during videoconferencing,
(ii) Highlight two advantages of videoconferencing to an organisation.
b. Briefly describe the following types of...
(Solved)
a. (i) Explain the use of two equipment’s used during videoconferencing,
(ii) Highlight two advantages of videoconferencing to an organisation.
b. Briefly describe the following types of computer hardware:
i. Video graphic array splitter.
ii. System unit.
iii. Universal serial bus port.
Date posted:
May 13, 2019
.
Answers (1)
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Describe four output devices that could be found in a television broadcasting station
(Solved)
Describe four output devices that could be found in a television broadcasting station
Date posted:
May 13, 2019
.
Answers (1)
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(i) Defme the term “optical storage media”.
(ii) Explain four types of optical storage media.
(Solved)
(i) Defme the term “optical storage media”.
(ii) Explain four types of optical storage media.
Date posted:
May 13, 2019
.
Answers (1)
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Explain the following computer hardware and software specifications:
i. Intel ® Core (TM) is 650@ 3.20 GHz 3.33GHz
ii. 2.00GB (1.87 GB usable)
iii. TFT 17” Lenovo.
(Solved)
Explain the following computer hardware and software specifications:
i. Intel ® Core (TM) is 650@ 3.20 GHz 3.33GHz
ii. 2.00GB (1.87 GB usable)
iii. TFT 17” Lenovo.
Date posted:
May 13, 2019
.
Answers (1)
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Define the term "primary storage" in the context of computing.
(Solved)
Define the term "primary storage" in the context of computing.
Date posted:
May 13, 2019
.
Answers (1)
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While reading a computer magazine, Mr. Luka Ongeri came across the following
specification of a personal compiler (PC) system: ¦**
"Pentium IV 3.0 GHZ, 1GB RAM, 150...
(Solved)
While reading a computer magazine, Mr. Luka Ongeri came across the following
specification of a personal compiler (PC) system: ■**
"Pentium IV 3.0 GHZ, 1GB RAM, 150 GB LID and 17" TFT Monitor".
Explain the meaning of the above specification.
Date posted:
May 13, 2019
.
Answers (1)
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a) Describe three types of computers according to their structure speed and architecture.
b) Briefly explain the purpose of each of the following elements of a...
(Solved)
a) Describe three types of computers according to their structure speed and architecture.
b) Briefly explain the purpose of each of the following elements of a computer system:
i) The system bus.
ii) The motherboard.
iii) The video card.
Date posted:
May 13, 2019
.
Answers (1)
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a) A computer was purchased with the following specification
Required:
Match the appropriate letter with the corresponding description of the computer above:
i. Operating system
ii. Main memory.
iii. Optical...
(Solved)
a) A computer was purchased with the following specification
Required:
Match the appropriate letter with the corresponding description of the computer above:
i. Operating system
ii. Main memory.
iii. Optical storage.
iv. Secondary storage.
b) Using the information provided in (a) above state the following:
i) Size of the monitor
ii) Processor speed
iii) Type of hard drive interface.
iv) Meaning of "RW" in specification D
Date posted:
May 13, 2019
.
Answers (1)
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Describe four characteristics of fifth generation computers.
(Solved)
Describe four characteristics of fifth generation computers.
Date posted:
May 13, 2019
.
Answers (1)
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Write the following acronyms in full:
i. HDD.
ii. Kbps.
iii. HDMI
iv. P2P
(Solved)
Write the following acronyms in full:
i. HDD.
ii. Kbps.
iii. HDMI
iv. P2P
Date posted:
May 13, 2019
.
Answers (1)
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(i) Describe the specific technological developments in each of the five computer generations,
(ii) Highlight three devices that contributed towards evolution of computers
(Solved)
(i) Describe the specific technological developments in each of the five computer generations,
(ii) Highlight three devices that contributed towards evolution of computers
Date posted:
May 13, 2019
.
Answers (1)
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Briefly describe five characteristics of computer memory
(Solved)
Briefly describe five characteristics of computer memory
Date posted:
May 13, 2019
.
Answers (1)
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Briefly describe the concepts of downsizing as used in computer technology.
(Solved)
Briefly describe the concepts of downsizing as used in computer technology.
Date posted:
May 13, 2019
.
Answers (1)
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Information communication technology (ICT) can be categorized into two broad
(Solved)
Information communication technology (ICT) can be categorized into two broad
products; traditional computer-based technologies and digital data communication
technologies.
Required
i. Using suitable examples highlight six traditional office applications of ICT.
ii. Briefly describe three specialized applications of ICT.
iii. Differentiate between "internal networks" and "external networks" as used in digital data
communication.
Date posted:
May 13, 2019
.
Answers (1)
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(i) Briefly explain four approaches to computing in an organisation
(ii) Give one advantage and one disadvantage of each of the approaches explained in (b) (i)
above
(Solved)
(i) Briefly explain four approaches to computing in an organisation
(ii) Give one advantage and one disadvantage of each of the approaches explained in (b) (i)
above
Date posted:
May 13, 2019
.
Answers (1)
-
Demonstrate briefly how introduction of information technology could affect the following:
i. Products and services
ii. Production economics.
iii. Buyers.
iv. Suppliers.
v. Substitute products.
vi. Competitors.
(Solved)
Demonstrate briefly how introduction of information technology could affect the following:
i. Products and services
ii. Production economics.
iii. Buyers.
iv. Suppliers.
v. Substitute products.
vi. Competitors.
Date posted:
May 13, 2019
.
Answers (1)
-
Outline five methods of entering data into a computer system
(Solved)
Outline five methods of entering data into a computer system
Date posted:
May 13, 2019
.
Answers (1)
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(i) Define the term "computerisation"'
(ii) Identify four benefits of computerisation to an organisation.
(Solved)
(i) Define the term "computerisation"'
(ii) Identify four benefits of computerisation to an organisation.
Date posted:
May 13, 2019
.
Answers (1)