I am a noob on this subject and I have read that Ethereum provides a platform for developers but I am not sure how easy it is to develop in such platform. Now with EOS are we trying to achieve ease of development and parallel processing in simple words? I am saying this as one might think, why develop another platform if there is already one, right?

Do you know any sources I can start reading to start embarking on understanding the development of application under a blockchain? I heard to start with asynchronous cryptology and distribution systems.