1. Chapter 1.1 Fundamentals of Computer systems

3. What is a computer system?
A computer system is one that is able to take a set of inputs, process them and create a set of outputs. This is done by a combination of hardware and software.
The computer system has one or more inputs to provide data. This data is then processed in some way. The outcome of the processing is sent to an output or it may be stored until some event happens to cause it to be output.
For processing to take place, there needs to be a set of instructions of what needs to be done. This set of instructions is called a program.
This system is called a stored-program computer.

4. What is a computer System?

5. Describe the importance of computer systems in the modern world
We rely on computer systems to keep us safe, to enable us to do our jobs, to entertain us, to run our homes and to enable us to communicate with other people.

6. Describe the importance of computer systems in the modern world

7. Describe the importance of computer systems in the modern world

9. Explain the need for reliability in computer systems

10. Explain the need for reliability in computer systems

11. Explain the need for reliability in computer systems

12. Read, watch the videos and make notes.
Explain the need for adherence to suitable professional standards in the development, use and maintenance of computer systems
Read, watch the videos and make notes.

13. Explain the importance of ethical, environmental and legal considerations when creating computer systems.

14. Explain the importance of ethical, environmental and legal considerations when creating computer systems.

15. Explain the importance of ethical, environmental and legal considerations when creating computer systems.

16. Explain the importance of ethical, environmental and legal considerations when creating computer systems.

17. Explain the importance of ethical, environmental and legal considerations when creating computer systems.

18. Explain the importance of ethical, environmental and legal considerations when creating computer systems.
Computer misuse
Data protection
Hacking
IP address and proxy servers
Privacy

19. Answer all questions Home appliances Home entertainment Communication
What is a computer system? Device which takes in a set of inputs, processes them and then outputs.
Describe the importance of computer systems in the modern world
Home appliances
Home entertainment
Communication
Security
Explain the need for reliability in computer systems
Explain the need for adherence to suitable professional standards in the development, use and maintenance of computer systems
Explain the importance of ethical, environmental and legal considerations when creating computer systems.
Computer misuse
Data protection
Hacking
IP address and proxy servers
Privacy
Explanations and examples needed

20. 1.2 CPU
What is a CPU?
What does it do?

21. The Fetch-Execute Cycle
The CPU works on something called the fetch-execute cycle.
It needs to fetch the data or instructions from the memory locations (fetch)
It needs to work out what these data or instruction mean (decode)
It then performs that task (execute)
The whole process is repeated again.
Fetch
Decode
Execute