Because of theinfluence of wind in creating current, there is a relationshipbetween this oceanic circulation and the general circulationof the atmosphere. The oceanic circulation is shown on thechart following this page (winter N. hemisphere), with thenames of the major ocean currents.
Radiological Dispersion Device. Terrorist use of a Radiological Dispersion Device (RDD) â often called âdirty nukeâ or âdirty bombâ â is considered far more likely than use of a nuclear explosive device. An RDD combines a conventional explosive device â such as a bomb â with radioactive material.
A direct-access storage device ( DASD ) pronounced ) is a secondary storage device in which each physical record has a discrete location and a unique address. IBM developed DASDs for use with mainframe computers and some minicomputers . Disk drives , magnetic drums , data cells and optical disc drives are all classified as DASDs.