Sulfur dioxide (SO2) is irritating to eyes, skin and respiratory system. Volcanic Smog (vog) is produced from SO2 gas and is a hazard in Hawaii. Scientists monitor SO2 emission rates at KÄ«lauea volcano. Gas Plume during the 1984 eruption of Mauna Loa, Hawaii blocks out the sun.
Control Unit (CU) A control unit (CU) handles all processor control signals. It directs all input and output flow, fetches code for instructions from microprograms and directs other units and models by providing control and timing signals.
The control unit (CU) is a component of a computer's central processing unit (CPU) that directs operation of the processor.It tells the computer's memory, arithmetic/logic unit and input and output devices how to respond to a program's instructions.he control unit (CU) is a component of a computer's central processing unit (CPU) that directs operation of the processor.