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.
Role: Commander in Chief. One of the most powerful roles that the president has is commander in chief of our nation's armed forces. The president is in charge of all U.S. armed forces: the Army, Navy, Air Force, and Marines. The president decides where troops shall be stationed, where ships shall be sent, and how weapons shall be used.