LESSON 14
Technical Terms
Network Configuration
What is a Network?
Two or more computers that are able to share resources (Printer, storage, data)
 LAN – local area network – computers close together geographically. One building.
 WAN – wide area networks – computer farther apart and connected by telephone lines or radio
waves. More than one building.
 Computers on network called nodes
 Computers and devices that allocate resources for a network are called servers.
 In the school you have a Client - Server Network Architecture. Each student is working on a
Client-node that is logged onto the Server-node.
 Peer-to-peer Architecture is another option that is commonly used in networking.
Network Communication Protocol
Protocol – common set of rules and signals that computers on the network use to communicate –
FTP; HTTP; Novel
The ISO formed a standard that makes to possible to develop protocols for networking based of the
following 7-layer model:
Application Layer
Presentation Layer
Session Layer
Transport Layer
Network Layer
Data Link Layer
Physical Layer
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Application layer - what users sees (i.e. Netscape)
Presentation layer - ensures message is transmitted in a language that the receiving computer
can read (i.e. HTML)
Session layer - opens communications and keeps all messages from various nodes straight (Half
Duplex -each computer takes turns or Full Duplex- Send and receive at the same time)
Transport Layer - protects data being sent ( Error detection of messages being sent)
Network layer - selects route for message ( Puts the data into packets of the proper size)
Data-link Layer - supervises the transmission and makes sure that it has made it to the receiving
computer.
Physical layer - encodes messages into the medium that will carry them (e.g. Digital to Analog if
message going by a modem on the telephone line)
Network Topology – bus, star, and token-ring
Network Topology is the Physical Layer of the network and how the nodes are connected to the network.
Here are 3 topologies. Can you think of what the Web topology looks like?
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LESSON 14
Technical Terms
Network Configuration

BUS - all nodes connected to LAN as branches on a common line, requires network cards
installed in nodes
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STAR - all nodes attached to separate lines, which lead to hub. This is what is used in the school
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TOKEN RING - all nodes on the same circuit which forms a continuous loop, requires a tokenring adapter card in each node
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LESSON 14
Technical Terms
Network Configuration
Operating Systems:
 perform basic tasks such as recognizing input from keyboard, sending output to display screen,
keeping track of files and directories on disk and controlling peripheral devices;
 large systems like a traffic cop that makes sure different users and programs do not interfere with
each other;
 responsible for security and ensuring unauthorized users do no access system;
Multi user: many users on one system
Multiprocessing: one program – several CPUs
Multitasking: allows more than one program to run simultaneously
Multithreading: allows different parts of one program to run concurrently
Real time: responds to input instantly
 provide a platform on top of which other programs called application programs can run;
Your choice of operating system determines to a great extent the applications you can run.
Sample operating systems are Windows, OS/2, and LINUX.
Operating systems are improving with time as programmers solve problems that concern computer users.
Continuous advancements are being made in operating system programs (LINUX).
You can interact with operating system using commands that are executed by the part of the operating
system called the command processor.
Older operating systems used command words (copy, rename, print), however; current operating systems
allow you to enter commands by point and click technology.
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LESSON 14
Technical Terms
Network Configuration
Assignment
1. Draw a comparison between a Network and the Church. How might the following terms be related to
the church? (1/2 page Report) Node; Server; Gateway; Operating System; LAN; WAN
2. What are some of the security issues that exist on the school's network and how are they related to
the acceptable use policy that is in your student Handbook? (1/2 page Report)
3. Students are escorted on a tour of the school. The student is to create a map of the school noting all
of computer components using the School Network Key given below.
School Network Key
On the School map indicate the location of each of the following items:
C = Standalone Computer
L = Computer Lab
SL = Specialized lab (CAD; Pathfinder)
S = Server Room
P = Network Printer
H = Hub
W = Wiring Closet
TC = Thin Clients / Net Vista Lab
CCL = Cross Curricular Lab
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On return to the classroom, review your map with your peers:
Discuss ways that the network could be improved. New locations for systems. Moving computers.
Discuss why all computers should / should not be on the network
Small group discussion on how to connecting the Portables to the network. The cost, security issues,
wiring. Limitations, pros and cons of the project.
Summary
1. Draw and label a star network system.
2. What types of operating system(s) are available in this school?
3. We are considering the possibilities of adding a new scanner and printer to one of the computer labs.
What considerations should be kept in mind?
4. You need to perform some file-management tasks. What does this mean and what part of our
computer environment is responsible for this task?
5. LAN and WAN can be confusing terms. What do they mean and how do they relate?
6. Of all the components inside the computer, which ones are most important for making sure input is
recognized and returned to an output device in a recognizable form.
7. List five types of projects that a programmer might be involved in. For example a programmer might
be involved in adding code to a web page that allows secure transmission of credit card numbers.
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LESSON 14
TIK2O1
Technical Terms
Network Configuration
NAME:
View the Video “Journey Inside the Computer” and answer the following questions for Units 4 & 6:
Video: The Journey Inside Unit 4 Questions:
1. What are 3 places that you can find a microprocessor
2. How big is a microprocessor
3. What must be done before microprocessor work?
4. What makes a good set of instructions for a microprocessor?
5. "and computer will only do______________"
6. What is one thing that you need to be able to do to be a SW engineer
7. What are the 3 primary jobs of a microprocessor?
8. What does Fetch do?
9. What doe Decode do?
10. What does Execute do?
Video: The Journey Inside Unit 6 Questions:
1. What is a network?
2. What does LAN stand for? WAN?
3. What was the ARPANet? When was it created?
4. When was the use of the internet expanded into the home?
5. How does information move on a computer Network?
6. What is a packet?
7. Modem stands for ______________________?
8. What is a Router? What is Bandwidth a measure of?
9. Why is Compression used?
10. What will happen as Network Bandwidth increases?
11. What are some of the advantages that the students say they have at New Technology High School?
12. What are some of the new responsibilities that you have on the Internet?
Fill in the following table:
Use http://www.geek.com/glossary/glossary_search.htm and
http://www.msci.memphis.edu/~ryburnp/cl/glossary.html
Term
New
Definition
Microprocessor
Execute
Internal cache
Memory management
Bandwidth
Gateway
Host site
Hub
Node
Remote terminal
Router
Server
Repeater
Network
Operating system
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LESSON 14
Technical Terms
Network Configuration
Evaluation Rubric
Criteria
Communication of
information
CGE2A CGE2B
CGE2D SP2.03I
SP2.04I
Level 1
- demonstrates
little ability to
assimilate and
communicate
information
effectively
Level 2
- demonstrates
some ability to
assimilate and
communicate
information
effectively
Making
Connections
CGE1D CGE4A
CGE4E ICV.02I
- demonstrates
little ability to
relate the social
impact of
computers to
responsible
decision making
- demonstrates
little ability to
apply acquired
knowledge into
practice
- demonstrates
some ability to
relate the social
impact of
computers to
responsible
decision making
- demonstrates
some ability to
apply acquired
knowledge into
practice
- demonstrates
limited ability to
select appropriate
research
resources
- demonstrates
some ability to
select appropriate
research
resources
Application of
Knowledge to
Action
IC1.07I IC1.08I
Thinking and
Inquiry
IC1.08I
Level 3
- demonstrates
considerable
ability to
assimilate and
communicate
information
effectively
- demonstrates
considerable
ability to relate the
social impact of
computers to
responsible
decision making
- demonstrates
considerable
ability to apply
acquired
knowledge into
practice
- demonstrates
considerable
ability to select
appropriate
research
resources
Level 4
- demonstrates a
thorough ability to
assimilate and
communicate
information
effectively
- demonstrates a
thorough ability to
relate the social
impact of
computers to
responsible
decision making
- demonstrates a
thorough ability to
apply acquired
knowledge into
practice
- demonstrates a
thorough ability to
select appropriate
research
resources
Note: A student whose achievement is below level 1 (50%) has not met the expectations for this
assignment or activity.
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