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.
In addition, the president has the weighty role of commander in chief of the armed forces. As the nation's chief executive, the president oversees foreign policy, making treaties with foreign nations and appointing ambassadors to other nations and to the United Nations, and domestic policy, dealing with issues within the United States, and economic.