The document discusses how the World Wide Web works. It explains that a browser connects to and requests a page from a server, which then sends the requested page back. It then discusses the anatomy of a Uniform Resource Locator (URL), including the protocol, location/domain name, and file name. It also explains that a URL gets translated into an IP address and electrical signals to send the requested file, which contains HTML markup, across the internet.
HTTP is the protocol of the web, and in this session we will look at HTTP from a web developer's perspective. We will cover resources, messages, cookies, and authentication protocols and we will see how the web scales to meet demand using cache headers. Armed with the fundamentals about HTTP, you will have the knowledge not only to build better Web/Mobile applications but also for consuming Web API.
HTTP is the protocol of the web, and in this session we will look at HTTP from a web developer's perspective. We will cover resources, messages, cookies, and authentication protocols and we will see how the web scales to meet demand using cache headers. Armed with the fundamentals about HTTP, you will have the knowledge not only to build better Web/Mobile applications but also for consuming Web API.
This presentation is based on web server. It is just an overview about web server and its types. It gives an idea about need of server management organization.
Overview of HTTP, HTML, WWW and web technologies.
The combo HTTP and HTML is the foundation of the World Wide Web (WWW).
HTML (HyperText Markup Language) defines a text-based format for describing the contents of a web page. HTML is based on tags similar to XML (eXtensible Markup Language), but its definition is less strict.
HTML pages are transported with the HTTP protocol (HyperText Transmission Protocol) over TCP/IP based networks.
The power of the WWW comes with the links based on URLs (Uniform Resource Locators) that connect pages to form a web of content.
Browsers display links as clickable items that, when clicked, trigger the browser to load the web page pointed to by the link.
This statelessness contributed a lot to the stability and scalability of the world wide web where web servers are only tasked with the delivery of web pages while the browser is responsible for the rendering of web pages.
The static nature of the early World Wide Web was soon augmented with the dynamic creation of web pages by web servers or by enriching static web pages with dynamic content.
Technologies like CGI (Common Gateway Interface), JSP (Java Server Pages) or ASP (Active Server Pages) were developed to provide the infrastructure to build dynamic web applications.
These server-side technologies were complemented with client-side technologies like Javascript and AJAX (Asynchronous Javascript And XML).
Web page caching is an important mechanism to reduce latency in loading web pages and reducing network traffic.
HTTP defines different caching control mechanisms. Simpler caching methods are based on web page expiry dates while more complex mechanisms use web page validation.
This presentation is based on web server. It is just an overview about web server and its types. It gives an idea about need of server management organization.
Overview of HTTP, HTML, WWW and web technologies.
The combo HTTP and HTML is the foundation of the World Wide Web (WWW).
HTML (HyperText Markup Language) defines a text-based format for describing the contents of a web page. HTML is based on tags similar to XML (eXtensible Markup Language), but its definition is less strict.
HTML pages are transported with the HTTP protocol (HyperText Transmission Protocol) over TCP/IP based networks.
The power of the WWW comes with the links based on URLs (Uniform Resource Locators) that connect pages to form a web of content.
Browsers display links as clickable items that, when clicked, trigger the browser to load the web page pointed to by the link.
This statelessness contributed a lot to the stability and scalability of the world wide web where web servers are only tasked with the delivery of web pages while the browser is responsible for the rendering of web pages.
The static nature of the early World Wide Web was soon augmented with the dynamic creation of web pages by web servers or by enriching static web pages with dynamic content.
Technologies like CGI (Common Gateway Interface), JSP (Java Server Pages) or ASP (Active Server Pages) were developed to provide the infrastructure to build dynamic web applications.
These server-side technologies were complemented with client-side technologies like Javascript and AJAX (Asynchronous Javascript And XML).
Web page caching is an important mechanism to reduce latency in loading web pages and reducing network traffic.
HTTP defines different caching control mechanisms. Simpler caching methods are based on web page expiry dates while more complex mechanisms use web page validation.
This presentation is based on the first chapter of our textbook Fundamentals of Web Development. The book is published by Addison-Wesley. It can be purchased via http://www.amazon.com/Fundamentals-Web-Development-Randy-Connolly/dp/0133407152.
This book is intended to be used as a textbook on web development suitable for intermediate to upper-level computing students. It may also be of interest to a non-student reader wanting a single book that encompasses the entire breadth of contemporary web development.
This book will be the first in what will hopefully be a textbook series. Each book in the series will have the same topics and coverage but each will use a different web development environment. The first book in the series will use PHP.
To learn more about the book, visit http://www.funwebdev.com.
The Hypertext Transfer Protocol (HTTP) is an application protocol for distributed, collaborative, hypermedia information systems. HTTP is the foundation of data communication for the World Wide Web. Hypertext is structured text that uses logical links (hyperlinks) between nodes containing text.
It is a collection of related web pages that may contain text, images, audio and video. It is the data communication protocol used to establish communication between client and server.
This is the material of my technical training about "Fundamentals of Web" to non-developers, especially to business people. In this presentation, I tried to cover concepts with details that everyone can understand. Even though most of the information I mention verbally in the training, the slides could help the ones who are not very familiar with web and web applications.
This is a 10-tip preview to "101 Social Media & Marketing Tips/Tactics For Churches" by Chuck Scoggins.
Visit his blog at http://chuckscoggins.com
Download the 101 Tips resource at http://csblog.us/101tipsandtricks
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.
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.
Search and Society: Reimagining Information Access for Radical FuturesBhaskar Mitra
The field of Information retrieval (IR) is currently undergoing a transformative shift, at least partly due to the emerging applications of generative AI to information access. In this talk, we will deliberate on the sociotechnical implications of generative AI for information access. We will argue that there is both a critical necessity and an exciting opportunity for the IR community to re-center our research agendas on societal needs while dismantling the artificial separation between the work on fairness, accountability, transparency, and ethics in IR and the rest of IR research. Instead of adopting a reactionary strategy of trying to mitigate potential social harms from emerging technologies, the community should aim to proactively set the research agenda for the kinds of systems we should build inspired by diverse explicitly stated sociotechnical imaginaries. The sociotechnical imaginaries that underpin the design and development of information access technologies needs to be explicitly articulated, and we need to develop theories of change in context of these diverse perspectives. Our guiding future imaginaries must be informed by other academic fields, such as democratic theory and critical theory, and should be co-developed with social science scholars, legal scholars, civil rights and social justice activists, and artists, among others.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
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.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
I have heard many times that architecture is not important for the front-end. Also, many times I have seen how developers implement features on the front-end just following the standard rules for a framework and think that this is enough to successfully launch the project, and then the project fails. How to prevent this and what approach to choose? I have launched dozens of complex projects and during the talk we will analyze which approaches have worked for me and which have not.
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
2. How The Web Works
Browser Connects
& Requests a Page
Server Sends Back
The Requested Page
3. How does it know where to look?
Anatomy of a Uniform Resource Locator (URL)
http://www.chuckscoggins.com/index.html
4. Anatomy of a URL
http://www.chuckscoggins.com/index.html
The Protocol
(Hypertext Transfer Protocol)
5. Anatomy of a URL
http://www.chuckscoggins.com/index.html
The Location (Web Server)
The Domain Name Server (DNS) translates
the domain name into an IP address.
6. Anatomy of a URL
http://www.chuckscoggins.com/index.html
74.53.24.242
7. Anatomy of a URL
http://www.chuckscoggins.com/index.html
The File Name
8. Anatomy of a Web Page
HTML
The file that is sent from the web server
contains hypertext markup information.
9. Say What!??!
HTML
The file that is sent from the web server
contains hypertext markup information.
10. Say What!??!
HTML
The file that is sent from the web server
contains hypertext markup information.
the web page you want to view
11. Say What!??!
HTML
The file that is sent from the web server
contains hypertext markup information.
Across the internet, translated into electrical signals
(1’s and 0’s) that get sent across wires,
using TCP/IP hypertext transfer protocol.
12. Say What!??!
HTML
The file that is sent from the web server
contains hypertext markup information.
A computer at a hosting company that is
running software that “serves” up web page files.
13. Say What!??!
HTML
The file that is sent from the web server
contains hypertext markup information.
The “code” or markup text that
the programmer/designer puts in the html file.
14. Anatomy of a Web Page
HTML
The file that is sent from the web server
contains hypertext markup information.
Browser
Interprets the hypertext markup information,
scripts, etc. in order to display the page.
15. File Transfer Protocol
FTP
A different protocol than “http” that is
used for transferring / moving files from
computer to computer (or server to server).
