A computer network connects multiple computers and devices to allow sharing of resources and communication between users. The two main types of networks are local area networks (LANs) and wide area networks (WANs). A LAN connects computers within a small geographic area like a home, office, or school building using cables or wireless technology. A WAN connects larger geographic areas like cities, countries, or the entire world using technologies like cables, satellites, or cellular networks. Computers can connect to networks using physical cables like twisted pair or fiber optic cables, or wirelessly using technologies like WiFi, Bluetooth, or cellular networks. Setting up a network provides benefits like faster file sharing, lower software costs, centralized management, and access to
network internet
TYPES OF NETWORK
There are two main types of network:
• LAN
• WAN
NETWORK TOPOLOGY
TYPES OF TOPOLOGY
1. BUS
2. STAR
3. RING
RING TOPOLOGY
INTERNET
HISTORY OF INTERNET
CONNECTING METHODS TO THE INTERNET
To connect to the Internet the following are needed:
• a computer
• telephone line
• modem and/or router
• an ISP (Internet Service Provider)
• Web browser, e.g. Internet Explorer, Fire fox, Chrome, Safari, Opera etc.
This Slide includes:
1. Meaning of Network
2. Importance Of Network
3. Types of Network
3.1. On the basis of Topology.
3.1.1. Structured Topology
3.1.2. Unstructured Topology
3.2. On the basis of Architecture.
3.2.1. Peer-To-Peer Network.
3.2.2. Server-based Network.
3.3. On the basis of Geographical Area
3.3.1. Local Area Network (LAN).
3.3.2. Wide Area Network (WAN).
3.3.3. Metropolitan Area Network (MAN).
3.3.4. Virtual Private Network (VPN).
3.3.5. Storage Area Network (SAN).
3.3.6. Value Added Network (VAN).
- Uttar Tamang
network internet
TYPES OF NETWORK
There are two main types of network:
• LAN
• WAN
NETWORK TOPOLOGY
TYPES OF TOPOLOGY
1. BUS
2. STAR
3. RING
RING TOPOLOGY
INTERNET
HISTORY OF INTERNET
CONNECTING METHODS TO THE INTERNET
To connect to the Internet the following are needed:
• a computer
• telephone line
• modem and/or router
• an ISP (Internet Service Provider)
• Web browser, e.g. Internet Explorer, Fire fox, Chrome, Safari, Opera etc.
This Slide includes:
1. Meaning of Network
2. Importance Of Network
3. Types of Network
3.1. On the basis of Topology.
3.1.1. Structured Topology
3.1.2. Unstructured Topology
3.2. On the basis of Architecture.
3.2.1. Peer-To-Peer Network.
3.2.2. Server-based Network.
3.3. On the basis of Geographical Area
3.3.1. Local Area Network (LAN).
3.3.2. Wide Area Network (WAN).
3.3.3. Metropolitan Area Network (MAN).
3.3.4. Virtual Private Network (VPN).
3.3.5. Storage Area Network (SAN).
3.3.6. Value Added Network (VAN).
- Uttar Tamang
A computer network is a group of computers linked to each other that enables the computer to communicate with another computer and share its resources, data, and applications.
A computer network can be categorized by its size. A computer network is mainly of four types:
Computer Network Types
LAN(Local Area Network)
PAN(Personal Area Network)
MAN(Metropolitan Area Network)
WAN(Wide Area Network)
A computer network is a set of connected computers. Computers on a network are called nodes. The connection between computers can be done via cabling, most commonly the Ethernet cable, or wireless through radio waves. Connected computers can share resources, like access to the Internet, printers, file servers, and others. A network is a multipurpose connection, which allows a single computer to do more.
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Types of Networks
There are several different types of computer networks. Computer networks can be characterized by their size as well as their purpose.
The size of a network can be expressed by the geographic area they occupy and the number of computers that are part of the network. Networks can cover anything from a handful of devices within a single room to millions of devices spread across the entire globe.
Some of the different networks based on size are:
Personal area network, or PAN
Local area network, or LAN
Metropolitan area network, or MAN
Wide area network, or WAN
A computer network is a group of computers linked to each other that enables the computer to communicate with another computer and share its resources, data, and applications.
A computer network can be categorized by its size. A computer network is mainly of four types:
Computer Network Types
LAN(Local Area Network)
PAN(Personal Area Network)
MAN(Metropolitan Area Network)
WAN(Wide Area Network)
A computer network is a set of connected computers. Computers on a network are called nodes. The connection between computers can be done via cabling, most commonly the Ethernet cable, or wireless through radio waves. Connected computers can share resources, like access to the Internet, printers, file servers, and others. A network is a multipurpose connection, which allows a single computer to do more.
↓↓↓↓ Read More:
@ Kindly Follow my Instagram Page to discuss about your mental health problems-
-----> https://instagram.com/mentality_streak?utm_medium=copy_link
@ Appreciate my work:
-----> behance.net/burhanahmed1
Thank-you !
Types of Networks
There are several different types of computer networks. Computer networks can be characterized by their size as well as their purpose.
The size of a network can be expressed by the geographic area they occupy and the number of computers that are part of the network. Networks can cover anything from a handful of devices within a single room to millions of devices spread across the entire globe.
Some of the different networks based on size are:
Personal area network, or PAN
Local area network, or LAN
Metropolitan area network, or MAN
Wide area network, or WAN
Program/Course : Computer System Servicing NC II
Unit of Competency : Set-up Computer Networks
Module : Install Network Cables
Learning Outcome 01: Installing Network Cables
for full compilation just visit my website.
http://computersystemsolution.com/
We are living in the smart era of the Internet.
It is achieved through development in data communication, telecommunication and networking.
Collaboration between networking and telecommunication gave birth to the Internet.
Here is a presention about networking and telecommunication.
Academic course on Computer Network Chapter -1 for BCA, Tribhuwan University
** Applicable for other courses as well
Includes the Basic of Computer Network, Topologies, Types of Network
It a a complete ppt explaining the basics of computer networking. It Includes topics like :
1. Types of Network
2. Protocols
3. Threats to network
4. Security of Network
etc
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
From Siloed Products to Connected Ecosystem: Building a Sustainable and Scala...
Ae2da alvarado_cos4
1. "Computer networks" redirects here. For the periodical, see Computer
Networks (journal).
Operating systems
Common features
• Process management
• Interrupts
• Memory management
• Virtual file system
• Device drivers
• Networking
• Security
• Graphical user interfaces
1.What is a Computer Network? And a Network? And its type?
Computer Network
-often simply referred to as a network, is a collection of computers and devices
connected by communications channels that facilitates communications among users
and allows users to share resources with other users. Networks may be classified
according to a wide variety of characteristics. This article provides a general overview
of types and categories and also presents the basic components of a network.
What is a Network?
A network consists of two or more computers that are linked in order to share
resources (such as printers and CDs), exchange files, or allow electronic
communications. The computers on a network may be linked through cables, telephone
2. lines, radio waves, satellites, or infrared light beams.
The two basic types of networks include:
• Local Area Network (LAN)
• Wide Area Network (WAN)
Local Area Network
A Local Area Network (LAN) is a network that is confined to a relatively small area. It is
generally limited to a geographic area such as a writing lab, school, or building. Rarely
are LAN computers more than a mile apart.
In a typical LAN configuration, one computer is designated as the file server. It stores
all of the software that controls the network, as well as the software that can be shared
by the computers attached to the network. Computers connected to the file server are
called workstations. The workstations can be less powerful than the file server, and
they may have additional software on their hard drives. On many LANs, cables are used
to connect the network interface cards in each computer; other LANs may be wireless.
See the Topology, Cabling, and Hardware sections of this tutorial for more information
on the configuration of a LAN.
Wide Area Network
Wide Area Networks (WANs) connect larger geographic areas, such as Florida, the
United States, or the world. Dedicated transoceanic cabling or satellite uplinks may be
used to connect this type of network.
Using a WAN, schools in Florida can communicate with places like Tokyo in a matter of
minutes, without paying enormous phone bills. A WAN is complicated. It uses
multiplexers to connect local and metropolitan networks to global communications
networks like the Internet. To users, however, a WAN will not appear to be much
different than a LAN.
Advantages of Installing a School Network
Speed. Networks provide a very rapid method for sharing and transferring files.
Without a network, files are shared by copying them to memory cards or discs,
then carrying or sending the discs from one computer to another. This method of
transferring files (referred to as sneaker-net) can be very time-consuming.
Cost. Networkable versions of many popular software programs are available at
considerable savings when compared to buying individually licensed copies.
Security. Files and programs on a network can be designated as "copy inhibit," so
that you do not have to worry about illegal copying of programs. Also, passwords
can be established for specific directories to restrict access to authorized users.
Centralized Software Management. One of the greatest benefits of installing a
network at a school is the fact that all of the software can be loaded on one
computer (the file server). This eliminates that need to spend time and energy
installing updates and tracking files on independent computers throughout the
building.
3. Resource Sharing. Sharing resources is another advantage of school networks.
Most schools cannot afford enough laser printers, fax machines, modems,
scanners, and CD players for each computer. However, if these or similar
peripherals are added to a network, they can be shared by many users.
Electronic Mail. The presence of a network provides the hardware necessary to
install an e-mail system. E-mail aids in personal and professional communication
for all school personnel, and it facilitates the dissemination of general
information to the entire school staff. Electronic mail on a LAN can enable
students to communicate with teachers and peers at their own school. If the LAN
is connected to the Internet, students can communicate with others throughout
the world.
Flexible Access. School networks allow students to access their files from
computers throughout the school. Students can begin an assignment in their
classroom, save part of it on a public access area of the network, then go to the
media center after school to finish their work. Students can also work
cooperatively through the network.
Workgroup Computing. Collaborative software allows many users to work on a
document or project concurrently. For example, educators located at various
schools within a county could simultaneously contribute their ideas about new
curriculum standards to the same document, spreadsheets, or website.
Disadvantages of Installing a School Network
Expensive to Install. Although a network will generally save money over time, the
initial costs of installation can be prohibitive. Cables, network cards, routers, and
software are expensive, and the installation may require the services of a
technician.
Requires Administrative Time. Proper maintenance of a network requires
considerable time and expertise. Many schools have installed a network, only to
find that they did not budget for the necessary administrative support.
File Server May Fail. Although a file server is no more susceptible to failure than
any other computer, when the files server "goes down," the entire network may
come to a halt. When this happens, the entire school may lose access to
necessary programs and files.
Cables May Break. The Topology chapter presents information about the various
configurations of cables. Some of the configurations are designed to minimize the
inconvenience of a broken cable; with other configurations, one broken cable can
stop the entire network.
Must Monitor Security Issues. Wireless networks are becoming increasingly
common; however, security can be an issue with wireless networks.
2.How to connect computers to a network?
Connection method
Computer networks can be classified according to the hardware and software
technology that is used to interconnect the individual devices in the network, such as
optical fiber, Ethernet, Wireless LAN, HomePNA, Power line communication or G.hn.
Ethernet uses physical wiring to connect devices. Frequently deployed devices include
hubs, switches, bridges and/or routers. Wireless LAN technology is designed to connect
4. devices without wiring. These devices use radio waves or infrared signals as a
transmission medium. ITU-T G.hn technology uses existing home wiring (coaxial cable,
phone lines and power lines) to create a high-speed (up to 1 Gigabit/s) local area
network.
Wired technologies
• Twisted pair wire is the most widely used medium for telecommunication.
Twisted-pair wires are ordinary telephone wires which consist of two insulated
copper wires twisted into pairs and are used for both voice and data
transmission. The use of two wires twisted together helps to reduce crosstalk and
electromagnetic induction. The transmission speed ranges from 2 million bits per
second to 100 million bits per second.
• Coaxial cable is widely used for cable television systems, office buildings, and
other worksites for local area networks. The cables consist of copper or
aluminum wire wrapped with insulating layer typically of a flexible material with
a high dielectric constant, all of which are surrounded by a conductive layer. The
layers of insulation help minimize interference and distortion. Transmission
speed range from 200 million to more than 500 million bits per second.
• Optical fiber cable consists of one or more filaments of glass fiber wrapped in
protective layers. It transmits light which can travel over extended distances
without signal loss. Fiber-optic cables are not affected by electromagnetic
radiation. Transmission speed may reach trillions of bits per second. The
transmission speed of fiber optics is hundreds of times faster than for coaxial
cables and thousands of times faster than for twisted-pair wire.
• Wireless technologies
• Terrestrial Microwave – Terrestrial microwaves use Earth-based transmitter and
receiver. The equipment look similar to satellite dishes. Terrestrial microwaves
use low-gigahertz range, which limits all communications to line-of-sight. Path
between relay stations spaced approx. 30 miles apart. Microwave antennas are
usually placed on top of buildings, towers, hills, and mountain peaks.
• Communications Satellites – The satellites use microwave radio as their
telecommunications medium which are not deflected by the Earth's atmosphere.
The satellites are stationed in space, typically 22,000 miles (for geosynchronous
satellites) above the equator. These Earth-orbiting systems are capable of
receiving and relaying voice, data, and TV signals.
• Cellular and PCS Systems – Use several radio communications technologies. The
systems are divided to different geographic area. Each area has low-power
transmitter or radio relay antenna device to relay calls from one area to the next
area.
• Wireless LANs – Wireless local area network use a high-frequency radio
technology similar to digital cellular and a low-frequency radio technology.
Wireless LANs use spread spectrum technology to enable communication
between multiple devices in a limited area. An example of open-standards
wireless radio-wave technology is IEEE 802.11b.
• Bluetooth – A short range wireless technology. Operate at approx. 1Mbps with
5. range from 10 to 100 meters. Bluetooth is an open wireless protocol for data
exchange over short distances
What are the Telecommunications media?
the state-owned telecommunications company, manages most
Telecommunications and Internet connections on the island. However,
following the recent liberalisation of the sector, a few private telecommunications
companies have emerged including MTN, Cablenet, TelePassport, OTEnet
Telecom, Omega Telecomand PrimeTel.
Examples:
Wire - Cheap, simple, compatable with old equipment, must be amplified for long
distances
• Optical - Fast, long distance, high bandwidth, can carry multiple data streams on one cable, expensive, can
break easily
• Wireless RF - Simple, no cables, expandable, no line-of-sight required, long distance
• Wireless IR - Cheap, line-of-sight required
That's all folks! I honestly don't think there are any other network medias. Unless you split wire into coax (thick
copper), UTP (Unshielded Twisted Pair), STP (Shielded Twisted Pair), etc. But I may be wrong.