Cambridge IGCSE Computer Science 0478 - Unit 1, 2, 3, 5

Unit 1: This unit introduces students to the basics of computer science. It covers topics such as number systems (binary, hexadecimal), data representation (text, sound, image), data storage, and compression. Students will learn about different file formats and how data is stored and compressed. They will also explore the different types of data that can be represented on computers, such as text, images, and sound. Unit 2: This unit builds on the knowledge gained in Unit 1 by exploring more advanced topics related to data compression, error detection, and encryption. Students will learn about different methods of compression, such as lossless and lossy compression, and how they are used in practice. They will also explore different methods of error detection, such as parity bits and checksums, and how encryption can be used to protect data. Unit 3: This unit covers computer architecture, data storage, and networks. Students will learn about the CPU, Von Neumann architecture, registers, CPU performance, and CPU instruction sets. They will also explore different types of data storage, such as primary and secondary storage, CD, DVD, virtual memory, and cloud storage. The unit also covers network hardware such as routers, switches, and hubs. Unit 5: This unit covers the Internet and the World Wide Web, digital currency, and cybersecurity. Students will learn about the HTTP protocol, cookies, and how web servers and browsers interact. They will also explore the concept of digital currency, including blockchain technology. The unit covers different types of cybersecurity threats, such as malware, phishing, and pharming, and how to protect against them using techniques such as firewalls and antivirus software.