A multi-rank memory system in which calibration operations are performed between a memory controller and one rank of memory while data is transferred between the controller and other ranks of memory. The antenna body includes an annular dielectric base, and an arc-shaped fed element feed by the feed part, an annular parasitic element disposed between the dial ring and crystal, and receives circularly polarized waves. An internal or external source of rotational power, such as hand crank, power screwdriver or an electrical motor, is preferably utilized in conjunction with a claw member including a bowstring engaging portion to translate rotation of the input source to longitudinal movement of the claw member to draw or release the crossbow bowstring resulting with minimal effort being expended by the user. In the electronic workspace, a user can manipulate and supplement the data without affecting the data source, unless there is a trigger event that causes modifications to the data to be written back to the data source. After that, heat is added furthermore to melt the brazing paste.