Buffer means a buffer
In the computer field, buffer refers to the buffer register, which is divided into input buffer and output buffer two kinds. The role of the former is to temporarily store the data sent by the peripheral so that the processor can take it away; The latter is used to temporarily store the data sent by the processor to the peripheral.
Buffer is one of the digital elements, it does not perform any operations on the input value, its output value is the same as the input value, but it plays an important role in the design of the computer.
Buffer register, also called buffer buffer (Buffer)