27. OCR GCSE (J277) 1.3 The internet

About this video

• Video Title: 27. OCR GCSE (J277) 1.3 The internet
• Channel: Craig'n'Dave
• Speakers: Craig
• Duration: 00:05:41

Overview

This video introduces the fundamental concepts of the internet, distinguishing it from the World Wide Web. It explains how networks are interconnected, the roles of web servers and clients, the concept of cloud storage, and the process by which the Domain Name Service translates URLs into IP addresses.

Key takeaways

• The Internet vs. The World Wide Web: The internet is the physical infrastructure (cables, routers, wireless connections) connecting networks globally, while the World Wide Web is just one service that runs on the internet.
• Web Servers and Clients: Web pages are stored on web servers, which are connected to the internet and have IP addresses. Clients (like web browsers) request these pages using either IP addresses or URLs.
• Domain Name Service (DNS): DNS servers translate human-readable URLs (e.g., bbc.co.uk) into numerical IP addresses (e.g., 212.58.244.67) that routers use to locate servers. This is a multi-step process involving different types of DNS servers.
• Cloud Storage: Data and programs can be stored on servers accessible via the internet, known as cloud storage. Advantages include anywhere access, larger storage capacity, automatic backups, and easier file sharing for collaboration.
• Network Structure: Home networks connect to Internet Service Providers (ISPs), which in turn connect to larger backbone routers and domain name servers, forming a vast interconnected system.