The Probert Encyclopaedia of Science & Technology

ACCUMULATOR

In science, an accumulator is an apparatus by means of which energy or power can be stored, such as the cylinder or tank for storing water for hydraulic elevators, the secondary or a storage battery used for storing the energy of electrical charges, etc.
In computing, the accumulator is a hardware register in the CPU used to receive the results of operations performed by the arithmetic and logic unit (ALU). The accumulator register can often also be used to perform shifts and rotations on values.
Research Accumulator