CEEE
LSA
work-text, tasks and exercises
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T6. Computer networking (Week 07)
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Digital or electronic communication refers to any data, information, words or
photos that are sent electronically in order to communicate with one or more
people. This includes calls, messages, group chats, emails, social networks and
websites. These methods of electronic communication have made our lives much
easier and enabled us to communicate with people around the world. However,
they do have some flaws and risks that we need to be aware of.
Computer communications describes a process in which two or more
computers or devices transfer data, instructions, and information. Some
communications involve cables and wires; others are sent wirelessly through the
air. Communication systems contain all types of computers and computing devices.
Successful communications need the following:
A sending device that initiates an instruction to transmit data, instructions, or
information.
1)A communication device that connects the sending device to a communication
channel.
2)A communication channel, or transmission media on which the data, instructions,
or information travel.
3)A communication device that connects the communication channel to a receiving
device.
4)A receiving device that accepts the transmission of data, instructions, or
information.
All types of computers and mobile devices serve as sending and receiving
devices in a communications system. This includes mainframe computers, servers,
desktop computers, notebook computers, tablet PCs, smart phones, portable media
players, and GPS receivers. One type of communication device that connects a
communication channel to a sending or receiving device such as a computer is a
modem. Two examples of communication channels are cable television lines and
telephone lines.
Computer communications are everywhere. Many require that users subscribe to
an Internet access provider. With other computer communications, an organization
such as a business or school provides communication services to employees,
students, or customers.
ADVANTAGES OF ELECTRONIC COMMUNICATION
Speedy transmission: It requires only a few seconds to communicate through
electronic media because it supports quick transmission.
 Wide coverage: The world has become a global village and communication
around the globe requires only a second.
 Low cost: Electronic communication saves time and money. For example, text
SMS is cheaper than the traditional letter.
 Exchange of feedback: Electronic communication allows the instant exchange of
feedback. So communication becomes perfect using electronic media.
B. Delimarschi
CEEE
LSA
work-text, tasks and exercises
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Managing global operation: Due to the advancement of electronic media,
business managers can easily control operation across the globe. Video or
teleconferencing, e-mail and mobile communication are helping managers in this
regard.
DISADVANTAGES OF ELECTRONIC COMMUNICATION
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The volume of data: The volume of telecommunication information is increasing at
such a fast rate that business people are unable to absorb it within the relevant time
limit.
 The cost of development: Electronic communication requires huge investment for
infrastructural development. Frequent change in technology also demands further
investment.
 Legal status: Data or information, if faxed, may be distorted and will cause zero
value in the eye of law.
 Undelivered data: Data may not be retrieved due to system error or fault with the
technology. Hence required service will be delayed.
 Dependency: Technology is changing every day and therefore poor countries face
the problem as they cannot afford the new or advanced technology. Therefore poor
countries need to be dependent towards developed countries for sharing global
network.
The Internet has become one of the most important components of our life. We
browse the web, check e-mails, make VoIP phone calls, and have video
conferences via computers. All of these applications are made possible by
networking computers together, and this complex network of computers is usually
referred to as the Internet. It is important give a clear understanding of how
networks, from in-home local area networks, or LANs, to the massive and global
Internet, are built and how they allow us to use computers to share information and
communicate with one another.
Web services describe standardized software that enables programmers to
create applications that communicate with other remote computers over the Internet
or over an internal business network. Businesses are the primary users of Web
services because this technology provides a means for departments to
communicate with each other, suppliers, vendors, and with clients.
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Additional info references /links for reading:
1. (T) Computer – Networking https://www.tutorialspoint.com/computer_fundamentals/computer_net working.htm
2. (T) Computer network https://en.wikipedia.org/wiki/Computer_net work
3. (T) Basics of Computer Networking https://www.geeksforgeeks.org/basics-computer-networking/
Additional info references /links for listening:/watching:
1. (V. /5:57) Computer Networking Explained https://www.youtube.com/watch?v=tSodBEAJz9Y
2. (V. /1:43) Computer Networking Technician https://saskpolytech.ca/programs-andcourses/programs/Computer-Networking-Technician.aspx
3. (V. /1:55) What is Networking https://www.youtube.com/watch?v=WexBQ1XgaDw
B. Delimarschi
LSA
CEEE
work-text, tasks and exercises
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Tasks and exercises
* All tasks should be performed with actively use of any accessible computer platforms,
applications and resources for listening correct terms, phrases and whole text pronunciation
(Ex. Google Translate) and their results will be presented orally on teacher’s request.
for the Lesson #6.1
Task A. Read the specified portion in the work-text (B –par. 1–3, L – 1st page, M – all) text and be
prepared to give short explanation of the main ideas for each paragraph;
Task B. Work with recommended info by links given above (at least one of them) and be
prepared to speak about any one of them;
Task C Talk about the question
 What are the main components of a computer network?
Task D (written). Prepare the work-text associated Vocabulary for the specified portion of text
(mandatory – all black underlined words/phrases, optional - red underlined words/phrases and
all lexical structures, that the student needs)
 if the word/phrase have more variants of translations – the context related should be first.
for the Lesson #6.2
Task A. Learn by heart and be ready to answer (in both translation directions) all prepared
Vocabulary terms, associated to your studying level;
Task B. Explain following terms:
1) world wide web
2) VoIP service
3) netiquette
Task C. Prepare the CEEE/College network description sheet:
1) Location of network: ...
2) Types of available connections/communication channels : ...
3) Number of interconnected computer and other devices: ...
4) Network improvements needed: ...
Ex. 1. Specify one of the source references from above and define/describe few (2-4) not trivial
and not defined/described in the main work-text key-words:
Example:
Source: Basics of Computer Networking https://www.geeksforgeeks.org/basics-computer-networking/
1) Broadband — a wide bandwidth data transmission that transports multiple signals and traffic types swiftly .
2) Instant Messaging — Real-time one-on-one communications service on the Internet that notifies you when one or
more people are online and then allows you to exchange messages, pictures, files, audio, and video
3) VoIP — Conversation that takes place over the Internet using a telephone connected to a computer or mobile
device or telephone adapter
Ex. 2. Compose and write down questions, correct answer for which will be the following term (B
– any one, L – any two, M – all):
A. Instant messaging
B. Posting a letter
C. Email
D. Video conferencing
for the Lesson #6.3
Task A. [for L and M level only] Tell about any last 2 years innovation in your professional field
(title, time and location of appearance, type and name of the source, news content [for L 2-3
sentences for M – 4-6 sentences ]),
Task B. Describe/explain disadvantages of electronic communication.
B. Delimarschi
LSA
CEEE
work-text, tasks
B – one in mixed (En/RO) explanation,
L – one-two in En. explanation
M – as many as possible
Task C. Describe/explain advantages of email.
B – one in mixed (En/RO) explanation,
L – one-two in En. explanation
M – as many as possible
and exercises
Task D. Name an example of Instant messenger app and give TWO reasons why more people
are currently using them than in the past.
B – in mixed (En/RO) explanation,
L – in En. explanation
M (dabbled task) – in En. explanation based on two different apps.
Ex. 1 (for B. –one, for L – two, for M - three)
Compose questions on base of any part of the studied work-text
1) composed question in your native language,
2) composed question in English,
3) the sentence with answer from the work-text (specifying its location in the work-text),
4) the answer, translated in your native language.
Ex. 2 (for B. –one, for L – two, for M - three)
Fill in the blanks with the correct words /phrases from the word bank
word bank : router, WLAN, configuration, network, wireless connection, settings
1) The_______ is a network connected to the Internet.
2) A LAN is a type of _____
3) We do not use cables for our network. We have a _____
4) Routers need a correct _____ to work properly.
5) Businesses with a LAN use _____ to connect computers.
6) It is sometimes necessary to _____ a network to make it work.
B. Delimarschi
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