A file system for a collection of data files on a microcontroller-based device, the microcontroller-based device including an arithmeticlogic unit, readwrite memory, and program memory, and the file system comprising a data table stored in the program memory and a document table of contents stored on a host computer. The system monitors access to storage elements within the network. The vacuum container method may also have a separating device disposed within it to separate solids and liquids by category.