Organizing information and things around in general will be a nightmare without the proper tools. Doing it using paper is hard enough, then count in that most likely paper will suddenly be considered a luxury for not being an easy replenished commodity. Any social structure over a certain size will greatly benefit from computing, even if only for things like keeping secured inventories and accounting. Data is expensive to handle outside the digital realm (think of making an electronic copy vs. making a copy using other media, probably by hand too). Although computing won't be for sure on the base of Maslow's pyramid for individual hierarchy of needs, it will be a great enabler for the social groups that will have managed to reach stability.