Around IT in 256 seconds

• #97: Ruby: help every programmer to be productive and to be happy

  Yukihiro Matsumoto, the creator of Ruby programming language, famously said: “I hope to see Ruby help every programmer in the world to be productive, and to enjoy programming, and to be happy.” Honestly, not many programming languages were built with developer’s happines in mind. And to be honest, Ruby is a joy to work with. It’s fairly easy to learn, easy to read, yet, very powerful. Also, with the appearance of Ruby on Rails, it became insanely productive. But first things first. Read more: https://nurkiewicz.com/97 Get the new episode straight to your mailbox: https://nurkiewicz.com/newsletter

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• #96: Border Gateway Protocol: the duct tape that makes the Internet work

  Border Gateway Protocol, BGP for short, is probably the most important protocols you might have never heard of. Well, you did at least once, in October 2021. When Facebook, WhatsApp, Instagram and Messenger all went down because of BGP misconfiguration. Or that one day back in 2008 when all YouTube traffic was accidentally routed to Pakistan. Because of BGP… misconfiguration. So what’s the big deal with BGP? First we must understand how the Internet works. Read more: https://nurkiewicz.com/96 Get the new episode straight to your mailbox: https://nurkiewicz.com/newsletter

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• #95: SQLite: the most ubiquitus database on the planet. And beyond!

  SQLite is by far the most common SQL database ever deployed. Are you lsitening to this on iPhone or Android device? It runs SQLite. Or maybe through a web browser? Chrome, Safari, Firefox, Opera and Android Browser all use SQLite underneath. Are you running MacOS or Windows? It’s built-in. Most Linux distributions have it as well. “But I’m listening to your podcast while driving a car”, you say. Well, most automotive systems use SQLite internally. If you happen to listen to my podcast while coding in PHP or Python, they include SQLite out-of-the box. Oh, and it’s the default choice for Ruby on Rails as well. I’m pretty sure SQLite is used somewhere on the International Space Station and it maybe even landed on other planets? So, what makes this unsung hero so popular to run at least one trillion databases worldwide? Read more: https://nurkiewicz.com/95 Get the new episode straight to your mailbox: https://nurkiewicz.com/newsletter

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• #94: Scala: language with academic background and huge industry adoption

  Scala is a programming language running on the Java Virtual Machine. It’s statically typed, and you can use it both as functional and object-oriented language. Even at the same time. The functional side of Scala supports higher-order (and higher-kinded) types. For those of you know what it means. On the other hand, object-relational features of Scala are equally strong. Including powerful trait composition, that you can somewhat compare to multiple inheritance. Combine than with great Java interoperability and no wonder why Scala became a go to language for many ex-Java developers. Read more: https://nurkiewicz.com/94 Get the new episode straight to your mailbox: https://nurkiewicz.com/newsletter

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• #93: K-means clustering: machine learning algorithm to easily split observations into multiple buckets

  K-means clustering is an algorithm for partitioning data into multiple, non-overlapping buckets. For example, if you have a bunch of points in two-dimensional space, this algorithm can easily find concentrated clusters of points. To be honest, that’s quite a simple task for humans. Just plot all the points on a piece of paper and find areas with higher density. For example, most of the points are located on the top-left of the plane, some at the bottom and a few at the centre-right. However, this is not that straightforward once you can no longer rely on graphical representation. For instance, when your data points live 3-, 4- or 100-dimensional space. Turns out, this is not that uncommon. Let me clarify. Read more: https://nurkiewicz.com/93 Get the new episode straight to your mailbox: https://nurkiewicz.com/newsletter

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