# Some background information

Before we start implementing our `Futures` , we'll go through some background
information that will help demystify some of the concepts we encounter.

## Concurrency in general

If you find the concepts of concurrency and async programming confusing in
general, I know where you're coming from and I have written some resources to 
try to give a high level overview that will make it easier to learn Rusts 
`Futures` afterwards:

* [Async Basics - The difference between concurrency and parallelism](https://cfsamson.github.io/book-exploring-async-basics/1_concurrent_vs_parallel.html)
* [Async Basics - Async history](https://cfsamson.github.io/book-exploring-async-basics/2_async_history.html)
* [Async Basics - Strategies for handling I/O](https://cfsamson.github.io/book-exploring-async-basics/5_strategies_for_handling_io.html)
* [Async Basics - Epoll, Kqueue and IOCP](https://cfsamson.github.io/book-exploring-async-basics/6_epoll_kqueue_iocp.html)

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