You do not need much to use for this book. The main piece of software that you need is R, which is open source and runs on Windows, Mac OS, and many varieties of Linux. You will also need a recent version of Java. Once you have R and Java installed, you will need to install some R packages, all of which work on every major operating system.

Perhaps, the more challenging requirement is that, for any real deep learning application, and even to explore quite small examples, modern hardware is required. For this book, I primarily used a desktop with an Intel Xeon E5-2670 v2 running at 2.50 GHz (10 physical cores, 20 logical cores), with 32 GB of memory, and a Samsung 850 PRO 512GB SSD. You do not necessarily need an equivalent system, but I found that running some examples on a latest laptop with 16 GB of memory and a dual core i7 processor is time consuming.