Computer systems looks at how computers store data, run instructions, and keep information secure. It includes how data is represented in binary, how the processor works, what affects performance, and the impact and risks of using computer systems.
- Data Representation
- Binary, two’s complement
- Floating-point numbers
- Unicode vs ASCII
- Bitmap vs vector graphics
- Computer Structure
- Fetch-execute cycle
- Performance factors (cores, clock speed, cache, data bus)
- Environmental Impact
- Intelligent systems (heating, traffic, cars)
- Security Risks and Precautions
- Computer Misuse Act
- Tracking cookies
- DoS attacks
- Encryption (keys, certificates, signatures)
