Network media types include wired and wireless options. Wired networks use twisted pair wires, coaxial cable, or fiber optic cables to transmit data via physical connections. Twisted pair wires can be unshielded or shielded, while coaxial cables have inner and outer conductors separated by insulation. Fiber optic cables transmit data via pulses of light through glass or plastic fibers. Wireless networks transmit data via radio frequencies or infrared waves without physical connections. Common wireless technologies include Wi-Fi, Bluetooth, and communication satellites. Wired networks have higher speeds but limited ranges, while wireless networks allow mobility but can have lower speeds and security risks. The choice of network media depends on needs and constraints like data speeds, distances, costs, and susceptibility to interference
this topic covered guided media including twisted pair cable, coaxial cable and fiber optic cable and their working process advantages and applications.
Communication and networking for class 12.pptxnesia7885
Network and Communication refer to the interconnected systems and devices that enable the transfer of data and information between various endpoints. The main components of a network and communication system include hardware devices such as computers, routers, switches, and modems, and software protocols that govern the flow of data between these devices.
1. What is ISP 2. Network Connections types 3. Terrace Network 4. Course wa...Vignesh kumar
1. What is ISP 2. Network Connections types 3. Terrace Network 4. Course wavelength division multiplexing 5. What is MUX 6. Fiber optic cable to earth cable converter 7. What is Router 8. What is Ethernet switch
Transmission Media, Guided and unguided transmission mediaadnanqayum
Transmission Media and its types, Guided and unguided transmission media with examples (guided = (i) Twisted pair cable (ii) Coaxial cable (iii) Fiber optical cable, unguided = (i) Radio wave (ii) Microwave (iii) Infra-red wave)
this topic covered guided media including twisted pair cable, coaxial cable and fiber optic cable and their working process advantages and applications.
Communication and networking for class 12.pptxnesia7885
Network and Communication refer to the interconnected systems and devices that enable the transfer of data and information between various endpoints. The main components of a network and communication system include hardware devices such as computers, routers, switches, and modems, and software protocols that govern the flow of data between these devices.
1. What is ISP 2. Network Connections types 3. Terrace Network 4. Course wa...Vignesh kumar
1. What is ISP 2. Network Connections types 3. Terrace Network 4. Course wavelength division multiplexing 5. What is MUX 6. Fiber optic cable to earth cable converter 7. What is Router 8. What is Ethernet switch
Transmission Media, Guided and unguided transmission mediaadnanqayum
Transmission Media and its types, Guided and unguided transmission media with examples (guided = (i) Twisted pair cable (ii) Coaxial cable (iii) Fiber optical cable, unguided = (i) Radio wave (ii) Microwave (iii) Infra-red wave)
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
Executive Directors Chat Leveraging AI for Diversity, Equity, and InclusionTechSoup
Let’s explore the intersection of technology and equity in the final session of our DEI series. Discover how AI tools, like ChatGPT, can be used to support and enhance your nonprofit's DEI initiatives. Participants will gain insights into practical AI applications and get tips for leveraging technology to advance their DEI goals.
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
Thinking of getting a dog? Be aware that breeds like Pit Bulls, Rottweilers, and German Shepherds can be loyal and dangerous. Proper training and socialization are crucial to preventing aggressive behaviors. Ensure safety by understanding their needs and always supervising interactions. Stay safe, and enjoy your furry friends!
How to Add Chatter in the odoo 17 ERP ModuleCeline George
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
2. Network Media
is the actual path over which an electrical signal travels as it moves from one
component to another.
The Communication Medium/Network Media plays an important role in Networks.
If the medium works well and properly, then the speed of transferring data is good
but if the medium is not working properly, then your data would be delayed or
would not be sent or even can be lost during transmission. In Computer Networks,
we call this speed of transmitting data, as DATA RATE.
3. Two Types of networks that can be set-up
1. Wired Network
2. Wireless Network
4. WIRED NETWORK
is mostly set-up using an Ethernet Cable.
This can be done using 3 technologies:
1. Twisted Pair Wires(UTP cable, STP cable)
2. Coaxial Cables
3. Fibre Optics
5. WIRED NETWORK
1. TWISTED PAIR WIRES
This technology was invented by Alexander Graham Bell.
These wires are the most oldest means of communication in
computer networking. For more than 100 years, the phone
technology has used these wires. Most usage of these twisted
wires is in our homes and offices.
The least expensive mode of communication used in networks.
6. In this, there is a pair of 2 copper wire, each 1-
2 mm thick, enrolled on each other in a spiral
pattern. These are used to avoid interference
from the nearby similar pairs. There are
number of pairs bundled together in a cable
by wrapping the pairs in a protective shield. A
pair consists of a single communication link.
7. UNSHIELDED TWISTED PAIR
UTP cable is a medium that is
composed of pairs of wires. UTP cable
is used in a variety of networks. Each of
the eight individual copper wires in
UTP cable ¥is covered by an insulating
material. In addition, the wires in each
pair are twisted around each other.
8. SHIELDED TWISTED PAIR
Shielded twisted-pair (STP) cable combines the techniques of shielding, cancellation, and
wire twisting. Each pair of wires is wrapped in a metallic foil. The four pairs of wires then
are wrapped in an overall metallic braid or foil. STP usually is installed with STP data
connector, which is created especially for the STP cable. However, STP cabling also can
use the same RJ connectors that UTP uses.
10. COAXIAL CABLES
Coaxial Cables same as twisted Wire cables consists of two copper wire. But in this, the
two wires are concentric to each other. Coaxial Cables has a wire conductor in the
centre , a circumferential outer conductor known as foil shield, and an insulating
medium called the dielectric separating these two conductors. The outer conductor is
protected in an outer jacket.
11. TYPES OF COAXIAL CABLES
Rg-58
Use for computer Networking
Rg-59
Use for cable Televisions
Rg-6
Use for Satellites
12. COAXIAL CABLES
Advantage Disadvantage
• Very Resistant to electromagnetic
interference and to physical
damage
• More expensive than other cables
• The biggest disadvantage is this
type of cable is not supported
anymore by fast networking
standards with its speed of 10
mbps
13. FIBRE OPTICS
An optical fibre is a flexible, thin,
transparent fibre made of high quality glass or
plastic, slightly thicker than a human hair. Or
you can also say an optical fibre is a thin,
flexible medium that conducts pulses of light,
with each pulse representing a bit of your
data. Fibre optics can generate high Data
Rates, so these are used for long distance
communications that require high speed and
least data loss. Optical Fibres have no
electromagnetic interference and can process
data at GB/sec of speed. This quality has made
them popular in long run data transfers.
binsonbaingan@yahoo.com may272006
14. 2 types of FIBRE OPTICS
SINGLE MODE
Single light travels from the inside
Very very thin, that light do not bounce
Use for very long distance
More expensive than multimode
MULTIMODE
More than a single light travels
Light bounces
Cannot be use for very very long distance
15. Media
Type
Speed Cost Advantages Disadvantages
UTP 10 Mbps to
1000 Mbps
Least Expensive Easy to install; widely
available and widely used
Susceptible to interference;
can cover only a limited
distance
STP 10 Mbps to
100 Mbps
More Expensive
than UTP
Reduced crosstalk; more
resistant to EMI than UTP
Difficult to work with; can
cover only a limited Distance
COAXIAL 10 Mbps to
100 Mbps
Relatively
inexpensive,
but more
costly than UTP
Less susceptible to EMI
interference than other
types of copper media
Difficult to work with; damage
to cable can bring down entire
network
FIBER
OPTIC
100 Mbps
100 Gb/s
Expensive Cannot be tapped, so
security is better; can be
used over great distances;
is not susceptible to EMI;
has a higher data rate than
coaxial and twisted-pair
Cable
Difficult to Terminate
MEDIA TYPE COMPARISON
16. WIRELESS NETWORK
Wireless communication uses radio frequencies (RF) or infrared (IR) waves to
transmit data between devices on a LAN. For wireless LANs, a key component is
the wireless hub, or access point, used for signal distribution.
To receive the signals from the access point, a PC or laptop must install a wireless
adapter card (wireless NIC).
Wireless signals are electromagnetic waves that can travel through the vacuum of
outer space and through a medium such as air. Therefore, no physical medium is
necessary for wireless signals, making them a very versatile way to build a network.
17. Some common applications of wireless data
communication:
• Accessing the Internet using a cellular phone
• Establishing a home or business Internet connection over satellite
• Beaming data between two hand-held computing devices
• Using a wireless keyboard and mouse for the PC
18. WIRELESS NETWORK
Radio waves
are electromagnetic waves with wavelengths greater than infra-red radiations. There
frequency varies from as high as 300 GHz to as low as 3 KHz . They travel by speed of light.
Radio Waves can be natural and artificial also.
Radio Waves doesn't need any physical wire to travel. They can penetrate through air,
through walls and windows and can be used to deliver long distances messages.
Natural Radio Waves occur due to lighting
Artificial Radio waves are used in mobile, radio communication, radar systems
etc.
19. WIRELESS NETWORK
Infrared
The wireless remote controls used with appliances such as televisions and stereos
communicate with infrared transmissions. Infrared is limited to a small area (e.g. a
single room), and usually requires that the transmitter be pointed towards the
receiver.
Infrared hardware is inexpensive compared to other mechanism, and does into
require and antenna.
Computer networks can use infrared technology for data communication. For
example, it is possible to equip a large room with single infrared connection that
provide network access to all computer in the room.
20. WIRELESS NETWORK
Bluetooth
Bluetooth technology that enables short-range wireless connections between
desktop and notebook computer, handhelds, personal digital assistants, mobile
phones, camera phones, printers, digital cameras, headsets, keyboards and even a
computer mouse.
Bluetooth wireless technology uses a globally available frequency band 2.4 GHz
for worldwide compatibility with the 10 meter range.
21. Communication Satellites
A communication satellite links two or more transmitter or receiver that
are situated on Earth, called as Ground Stations. The satellite receives the
message or transmission on one frequency band, reproduce the signal using
a repeater and transmits the signal or the message on another frequency.
There are basically two types of satellites are used in communications. These
are:
(a) Geostationary Satellites
(b) Low Earth Orbiting satellites (LEO satellites)
WIRELESS NETWORK