Semantic meaning
https://merriam-webster.com/dictionary/buffer
- any of various devices or pieces of material for reducing shock or damage due to contact
- a means or device used as a cushion against the shock of fluctuations in business or financial activity
- a substance capable in solution of neutralizing both acids and bases and thereby maintaining the original acidity or basicity of the solution also : a solution containing such a substance
- a section of computer memory for temporarily storing information especially : one that accepts information at one rate and delivers it at another The streaming video feed continues to download into the buffer while the computer starts playing the movie.
Buffer in computers
ref: difference between buffer and cache The buffer, on the other hand, is found mainly in the RAM and acts as an area where the CPU can store data temporarily. This area is used mainly when the computer and the other devices have different processing speeds. Typically, the data is stored in a buffer as it is retrieved from an input device (such as a mouse) or just before it is sent to an output device (such as speakers). However, the buffer may also be used when moving data between processes within a computer.