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Web apps, The language of the web, The tip of the iceberg - Coggle Diagram
Web apps
advantages
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Automatic updates: Automatically update to the latest version, without the need for manual installations.
Multi-device compatibility: They work on different devices (computer, smartphone, tablet) with web browsers.
Security: They are safer because it is not necessary to download and install them directly on the computer, protecting against viruses and malware.
definizione
Web apps are lightweight applications that run within a web browser (such as Firefox, Chrome, or Safari).
Google Maps is an example of a web app that offers specific functionality (maps, directions) via browser.
The language of the web
How the web works: When we browse a web page, our browser (such as Firefox or Safari) sends a request to the web server.
The server responds by sending the browser a text file containing all the information necessary to view the page.
Ruolo dei tag HTML: Ogni elemento della pagina web (titoli, paragrafi, elenchi, link, immagini, ecc.) è contrassegnato da "tag" HTML che indicano al browser come visualizzarlo.
I tag sono racchiusi tra parentesi angolari (< >) e spesso si presentano in coppia (tag di apertura e tag di chiusura).
Example of HTML code: The page shows an example of basic HTML code, where you see tags like <h2> for titles, <p> for paragraphs and <a> for links.
Evolution of HTML: HTML has evolved over time, moving from simple text pages to more interactive and multimedia content.
Today, HTML is often paired with other technologies such as JavaScript and CSS to create more dynamic and graphically elaborate websites.
HTML5: The latest version of HTML, called HTML5, allows you to create complex web applications, embed videos and interact with apps even offline.
The tip of the iceberg
main point
WWW (World Wide Web): It is the visible part of the iceberg, the one we access via search engines such as Google and Bing.
Deep Web: It is the submerged part of the iceberg, approximately 90% of web content, not indexed by search engines.
It includes content such as private emails, streaming videos, registered forums, online banking, and data stored in the cloud. Connected devices such as thermometers or vending machines are also part of the deep web.
Access to this part of the web often requires passwords or specific permissions, but occurs via a standard browser.
Dark Web: It is the deepest and darkest part of the iceberg, less than 1% of the web.
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there's also Silk Road, a dark web marketplace that offered illegal goods and services and was shut down by the FBI.