A buffer machine is a type of device used in computing and data processing to temporarily store data before it is sent to its final destination. This helps manage differences in processing speeds between different components, ensuring that data flows smoothly without loss or delay. Buffer machines are commonly used in applications like video streaming and printing. These machines can hold data in a buffer, which is a designated area in memory. By collecting data in this way, buffer machines help improve efficiency and performance, allowing systems to handle large amounts of information without overwhelming the processing unit.