This is one of those rare occasions when disambiguation will not lead to a better understanding. We can safely use REST as a word on its own, without even considering the meaning of each letter. It’s just been decided to write it in capital letters, it doesn’t matter why. So, why do you need to know what REST is? Well, if you’re a web developer and you’re working with external API’s, or writing your own service to provide a way of communication with the external world, then you, probably, need…