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.
1 The position of commander in chief makes the president the highest military authority in the United States, with control of the entire military establishment. 2  Though the president is commander in chief, only Congress can declare war. 3  However, presidents have gone a long way in capturing this power for themselves. The position of commander in chief makes the president the highest military authority in the United States, with control of the entire military establishment. 2  Though the president is commander in chief, only Congress can declare war. 3  However, presidents have gone a long way in capturing this power for themselves.