A method for managing data includes receiving individually accessible data units, each identified by a key value; storing a plurality of blocks of data, each of at least some of the blocks being generated by combining a plurality of the data units; and providing an index that includes an entry for each of the blocks. The lithographic technique, providing extremely high resolution, is used to fabricate transistor source and drain electrodes, parts of interconnections and circuit electrodes, enabling highly conductive materials to be used. The rendering devices could be connected televisions, streamium devices, connected photo frames, set-top-boxes, mobile phones and personal computerslaptops within the home network. Ink absorbing members are inserted into the sub-chambers. A nonmagnetic back layer may be additionally inserted as an interface not in contact with the nonmagnetic intermediate layer to increase the output by making use of spin-dependent interface scattering along the interface between the pinned layer and the nonmagnetic back layer or between the free layer and the nonmagnetic back layer. The corkscrew takes care of blocking the bottle neck during the worm screwing through a garter-spring tightening arrangement.