1. Logic Gates and Boolean Algebra | XOR gate operation, writing logic expressions, and drawing circuits for Boolean expressions.

2. Memory and Data Transfer | Differences between DRAM and SRAM, functionality of memory buffers in hard disk data transfers.

3. Control Systems and Sensors | Automatic braking system analysis, reasons for classifying it as a control system.

4. Relational Databases and SQL | Identifying foreign keys, writing SQL queries for sales data, defining and normalizing database tables.

5. Software Licensing and Ethics | Identifying software licenses (proprietary, trial, open-source) and benefits of joining a professional ethical body.

6. Networking and Data Transmission | WAN characteristics, types of transmission media, IP addressing, subnetting, and bit streaming in real-time video conferencing.