IGCSE Computer Science 0478: Chapter 5: The internet and its uses

**Lesson Objectives: **
5.1 The internet and the world wide web:
Candidates should be able to:
1 Understand the difference between the internet and the world wide web
2 Understand what is meant by a uniform resource locator (URL)
3 Describe the purpose and operation of hypertext transfer protocol (HTTP) and hypertext transfer protocol secure (HTTPS)
4 Explain the purpose and functions of a web browser
5 Describe how web pages are located, retrieved and displayed on a device when a user enters a URL
6 Explain what is meant by cookies and how they are used, including session cookies and persistent cookies
5.2 Digital currency: with Teacher workheet /students worksheet and students homework.
1 Understand the concept of a digital currency and how digital currencies are used
2 Understand the process of blockchain and how it is used to track digital currency transactions.
5.3 Cyber security: with Teacher workheet /students worksheet and students homework.
1 Describe the processes involved in, and the aim of carrying out, a range of cyber security threats.
2 Explain how a range of solutions are used to help keep data safe from security threats