basicallythis makes all the binary executables of spark available to windowswherever you're running it from click on ok on this menu and on the previous two menus we have finally everything set up spark introduction let' get started with high-level overview of apache spark and see what it' all aboutwhat it' good forand how it works what is sparkwellif you go to the spark websitethey give you very high-levelhandwavy answer" fast and general engine for large-scale data processing it slicesit dicesit does your laundry wellnot really but it is framework for writing jobs or scripts that can process very large amounts of dataand it manages distributing that processing across cluster of computing for you basicallyspark works by letting you load your data into these large objects called resilient distributed data storesrdds it can automatically perform operations that transform and create actions based on those rddswhich you can think of as large data frames the beauty of it is that spark will automatically and optimally spread that processing out amongst an entire cluster of computersif you have one available you are no longer restricted to what you can do on single machine or single machine' memory you can actually spread that out to all the processing capabilities and memory that' available to cluster of machinesandin this day and agecomputing is pretty cheap you can actually rent time on cluster through things like amazon' elastic mapreduce serviceand just rent some time on whole cluster of computers for just few dollarsand run your job that you couldn' run on your own desktop