If you are an Amazon Prime subscriber, you do not need to buy another device to watch any Amazon program on your computer.
In your search engine type "amazon prime bosch" The results list each season. Click on the one you want and the screen goes to the Bosch home page. If you have Amazon Prime, there is a green box on the right side that says "Episode 1 watch now." Just click on it and the show starts.
If you go down the page, you will see a synopsis for each episode and can click on it to run it.
The Bosch series is terrific. Titus Welliver is everything you imagined Bosch to be when you read the books.