A computer is comprised of some logic parts which have serial logic functions, and the adder is one of the combine logic circuits.
电子计算机是由具有各种逻辑功能的逻辑部件组成的，加法器就属于其中的组合逻辑电路。
2
The circuits of asynchronous adder unit, asynchronous comparator unit, and asynchronous selector unit are proposed.
给出了一种异步实现结构的异步加法单元、异步比较单元和异步选择单元电路。
3
The model can be extended for studying more complex all-optical circuits of enhanced functionality in which the prefix tree adder is the basic building block.