1 Data registers can hold numeric values such as integer and, in some architectures, floating-point values, as well as characters, small bit arrays and other data. 2  In some older and low end CPUs, a special data register, known as the accumulator, is used implicitly for many operations.
A commander-in-chief is the person or body that exercises supreme operational command and control of a nation's military forces or significant elements of those forces. In the latter case, the force element is those forces within a particular region, or associated by function.
The commander-in-chief of the US military at any given time is the president of the United States. This is established in the US Constitution, though in the past other high ranking military officials have also used the title âcommander-in-chiefâ to refer to their position as commander of large operations.