The central processor was the high-speed arithmetic unit that functioned as the workhorse of the computer.

It had a complete instruction set for controlling its arithmetic units.

There were six other drums that held a total of 4,000 words of data, but the arithmetic unit couldn't access these drums directly.

It supports single-operand instruction set and works with all 16 index registers of the arithmetic unit.

It is intended for environments when a floating-point arithmetic unit is unavailable.

Some of the arithmetic units and addressing features were optional on some models of the System/360.

The highway ducts are under the floor and the arithmetic units are along the side walls.

Pomerene designed and implemented the adder portion of the arithmetic unit.

It used 2,850 Vacuum tubes and 1,040 semiconductor diodes in the arithmetic unit.

These cards include many arithmetic units (currently up to 1536) working in parallel.