| Unit |
Hardware |
| 1 |
The CPU |
| Function and characteristics of the CPU |
| Input and output devices |
| Memory |
| Secondary storage |
| Hardware components |
| Embedded systems |
| Logical operators |
| Boolean logic |
|
|
|
Communication |
| 2 |
The Internet |
| Local Area Networks |
| Network topologies |
| Wireless networking |
| Packet switching and routers |
| Protocols and layers |
|
|
|
Organisation and structure of data |
| 3 |
Units |
| Numbers |
| Characters |
| Images |
| Sound |
|
|
|
Software |
| 4 |
Operating systems software |
| Utility software |
| Program construction and language |
| Software tools |
|
|
|
Security and data management |
| 5 |
Data security |
| Encryption |
| Compression |
| Network security |
| Cybersecurity |
| System threats and vulnerabilities |
|
|
|
Ethical, legal and environmental impacts |
| 6 |
Ethical impacts |
| Computer system in the modern world |
| Legislation |
