I learnt how to use different OSs, what certain acronyms and abbreviations mean and how computer networks work.
I learned more about the basic low-level programming concepts, like logic gates, as well as different number systems, such as binary.
First experience with actual code writing. Learnt the OOP programming model as well as the MVC framework for development.
Learnt how to create the front-end and back-end for web applications as well as the different possibilites for doing either-or.
Learned how to create a RESTful API, which has user authentication, and how to document APIs using Swagger.
Learned the different methodologies, that have been used throughout the IT field. Special emphasis being given to the workings of agile methodologies.
No problems communicating in English, however I do have a noticeable accent when speaking, as well as the occasional grammar mistake here and there.