Definition of Buffer

Buffer is for computing the temporary memory that allows that at the beginning of a program or file that needs information, it can store it until you finish your work, avoid permanent detention due to the possible lack of data. It is common to notice the work of the buffer when you open a multimedia file that requires you to load the data in sufficient quantity to be able to run without stopping. This happens when you open a song, a movie or a video involving use of temporary memory. Depending on the availability of memory or buffer for each device, the task may take more or less time. It is also very common to use buffer or temporary memory when it is necessary to send files out of the computer, for example to the printer, a speaker or a telecommunications network. It can be applied both in hardware and in software but this last option tends to be the most common.
Other elementary functions of the memory buffer (perhaps not as visible) are for example which have to do with the correct operation of the keyboard. This requires a minimum buffer memory to store and display the characters typed by the user almost immediately. In the same way, the memory buffer is essential when speaking of connections via the Internet that require permanent access to this memory with the aim of reproducing images or videos on an ongoing basis and without pauses.
Unlike memory cache (which also uses storing data), assumes that all data stored by the buffer will be eventually used while the cache can store information for the only time is required at a later date. Clearly, for best results, it is of great importance have memory buffer of sufficient capacity according to the needs and preferences as a small buffer memory can not reach to large storage requirements.