Search the Internet for the amount of data being produced every year globally and discuss the evolution of data storage capacity. 

It contains accelerometer and gyroscope readings on 30 subjects who had the smartphone on their waist. The data is available in a raw format, and involves some data preparation efforts. Your objective is to identify and classify these readings into activities like walking, running, climbing, and such. More information on the data set is available on the download page. You may use clustering for initial exploration and gain an understanding on the data. You may use tools like R to prepare and analyze this data.