Internet fundamentals

This lesson focuses on internet fundamentals. Interdisciplinary approaches reveal connections that single-subject study might miss.

The Internet is a global network connecting billions of devices via standardized protocols (TCP/IP). The World Wide Web is a system of interlinked webpages built on top of the Internet. Data transmission works by breaking information into packets, routing them through networks, and reassembling them at the destination. Cybersecurity protects systems, networks, and data from unauthorized access or attack. Key threats: malware (viruses, ransomware, spyware), phishing (fraudulent emails/websites), data breaches. Best practices: strong unique passwords (or a password manager), two-factor authentication, software updates, avoiding suspicious links. Your digital footprint is the record of your online activity—posts, searches, purchases—which can be permanent and public. Privacy strategies: check app permissions, use private browsing, understand that free services often sell user data. Critical question: who benefits from collecting your data, and what are the risks?

As you engage with this material, consider both the theoretical foundations and practical applications. Think critically about how this concept builds on prior knowledge and where you might apply it beyond the classroom.

Challenge yourself to go beyond memorization—seek to understand the "why" behind the processes and principles.