Your Coding Teacher

Every application or service you want to develop has: -Functional requirements: what is it supposed to do? - Non-functional requirements: security, robustness, scalability, and maintainability Both are important

Java is to JavaScript what Car is to Carpet

"No one hates software more than software developers." - Jeff Atwood

Classic MATLAB interview question: What's the difference between A' and A.'? A' performs conjugate transpose, A.' only tranpose. The results are only different if you're dealing with complex numbers

Object-oriented programming (OOP) is a programming paradigm based on the idea of "objects", which can contain attributes and functions to operate on them. Simula is considered the first language with the primary features of an object-oriented language. It was created in 1967.

Algorithmic paradigms - Divide & conquer: combine non-overlapping subproblems. Merge sort - Dynamic programming: overlapping subproblems + optimal substructure -> optimal solution. Fibonacci - Greedy: best choice at each step to arrive to optimal global solution. Dijkstra

In GCP, identities are represented by Google accounts. There are different types: - Google accounts. For people - Service accounts (SAs). For apps, services, vms,... - Google Groups (of users and SAs) - G Suite Domain: for orgs - allAuthenticatedUsers - allUsers

5 Tools for devs - IDE: Intellij/VS Code - Lightweight editors: Vim/Emacs - Python interactive shell (for small snippets of code, calculator, ...) - Git: learn it well - Shell - learn bash/zsh well

First, solve the problem Then, write the code

Focus on being practical and delivering. Don't be afraid to use standard "old-school" technologies, instead of always going after the hottest framework.

GCS vs S3 differences - Buckets are regional or multi-regional (for every storage class) VS regional and zonal - Cold storage retrieval time: milliseconds (like any other class) VS minutes to hours

Fortan was created by IBM in 1957 and mainly used for mathematical calculations. FORTRAN stands for FORmula TRANslation It is still used today!

OLTP vs OLAP systems - Online Transaction Processing vs Online Analytical Processing - ~Relational DB vs Datawarehouse - Query volume: Huge vs Low - Each query touches: a few records vs scans a huge number of records - Bottlenecks: Disk seek time vs Disk bandwitdth

"The first step of any project is to grossly underestimate its complexity and difficulty." - Nicoll Hunt

The kernel acts as an interface between your programs and hardware Kernel processes have unrestricted access to memory and CPU User processes have limited access to CPU and memory That's why when your browser crashes it doesn't take down the whole system with it

- "Why is this not working?" - "Why is this working?" Programmer's life

Simplicity - the art of maximizing the amount of work NOT DONE - is essential agilemanifesto .org

Design patterns in 1 tweet Singleton. Makes sure there is only one instance of an object.

"Software and cathedrals are much the same - first we build them, then we pray."

"Part of the inhumanity of the computer is that, once it is competently programmed and working smoothly, it is completely honest." - Isaac Asimov