A cloud engineer is an IT professional responsible for any technological duties associated with cloud computing, including design, planning, management, maintenance and support. 1) In general, a device is a machine designed for a purpose. In a general context, a computer can be considered a device. 2) In the context of computer technology, a device is a unit of hardware , outside or inside the case or housing for the essential computer (processor, memory, and data paths) that is capable of providing input to the essential computer or of receiving output or of both.
Dissolved Mineral Salts. 1  The principal ions found in water are calcium, magnesium, sodium, bicarbonate, sulfate, chloride and nitrate. A few parts per million of iron or manganese may sometimes be present and there may be traces of potassium salts, whose behavior is very similar to that of sodium salts.
Dissolving salt. 1  When salt crystals are placed in water, the positive ends of the water molecules attract the negative chloride ions. 2  The negative ends of the water molecules attract the positive sodium ions. 3  When attraction between the water and the ions overcomes the attraction the ions have for each other, the salt dissolves.