Unit 13 — Top 10 Programming Languages

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This unit discusses the top 10 programming languages in use today (2025), as well as related vocabulary and concepts that programmers should be familiar with.

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Top 10 Most Popular Programming Languages There are hundreds of programming languages in use today. How can you know which one to learn next? Or which one is best for your career in IT? That depends on what you want to do—but a good start is to learn one of the world’s top 10 most popular languages. These are used by millions of developers around the world and are always in demand in the job…

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Many hardcore developers are switching to Rust because it runs as fast as C++ but is safer and easier to maintain.
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Many web developers are moving from JavaScript to TypeScript because it helps prevent small coding errors when building larger applications.
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The new version of the app used GraphQL to get only the specific information it required, making it faster and more efficient than the older traditional REST API.
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  • Which programming languages do you already know? Which ones do you want to learn? Why?
  • Which language do you think is best for making banking software? Web pages? Games? Text processing?