This material covers the core DOTS packages: [Entities](https://docs.unity3d.com/Packages/com.unity.entities@latest/), [Collections](https://docs.unity3d.com/Packages/com.unity.collections@latest/), [Burst](https://docs.unity3d.com/Packages/com.unity.burst@latest/), [Mathematics](https://docs.unity3d.com/Packages/com.unity.mathematics@latest/), and [the job system](https://docs.unity3d.com/Manual/JobSystem.html). *(For material about the other DOTS packages, see their manuals: [Physics](https://docs.unity3d.com/Packages/com.unity.physics@latest/), [Netcode](https://docs.unity3d.com/Packages/com.unity.netcode@latest/), [Entities.Graphics](https://docs.unity3d.com/Packages/com.unity.entities.graphics@latest/).)*
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**Videos:**
1. [Video: The C# Job system](https://youtu.be/jdW66hA-Qu8)
1. [Video: ECS Entities and components](https://youtu.be/jzCEzNoztzM)