Other passive sensor technologies of note include hyperspectral visible/NIR collection and processing and inexpensive, scatterable, unattended ground sensors (acoustic, seismic, "hot spot," etc.). Hyperspectral imaging allows target searches to be conducted in the frequency domain, as opposed to the spatial domain as is the norm today. This provides a powerful new input for automatic target recognition (ATR) systems, is useful for addressing low observables (LO), and is especially important for remote imaging assets. Unattended ground sensors allow critical areas to be monitored continually. For example, the actual area of operations for Scuds in ODS was relatively small, but it was very difficult for then-current sensing systems to oversee. Technologies being developed in the area of microelectromechanical systems, in particular, hold promise for enabling capable and inexpensive sensor fields. _Imbedded sensors:_ Monitoring the position and status of Blue and friendly forces and assets is of equal importance in tracking the enemy. GPS presented a tremendous advantage to troops in ODS. This capability needs to be extended down to the individual soldier, and the status of all critical material and personnel needs to be tracked. _Sensor signal processing:_ Finally, the signals from modern sensors are of limited use without proper processing and presentation to the user. This area will be developed further in the computational technologies section. Technologies that are historically grouped with sensor systems include automatic target recognition, imbedded multisensor fusion and correlation, and displays. Computational Technologies The capabilities of the integrated circuit (IC), and in particular the microprocessor, continue to increase unabated. Certainly, physical limits must be approached at some point, but each looming barrier has so far been met by technological innovation. Nevertheless, should the march of IC improvements slow somewhat, the software and networking technologies that are being developed at an accelerating pace will permit the vision of Rapid Dominance to become of ever increasing utility. Rapid Dominance requires the collection, management, and fast access of enormous quantities of information. Technologies that will enable this include computational hardware advances such as increasingly powerful workstations, reduced-cost image generators, massively parallel machines, compact displays, reduced-cost memory devices (i.e., DRAM, RAID, and optical jukeboxes) client/server-specific database engines, reconfigurable simulation cells, "wearable" PCs, advanced human-computer interface (HCI) techniques (i.e., voice interfaces and those coming to define "virtual reality"), and PCMCIA technology for peripherals (i.e., digital comms boards, miniaturized hard drives, and modems). Software advances will be even more critical for Rapid Dominance. Areas of importance include: