Final answer:
The microprocessor is the device that made it possible for digital computers to efficiently process large amounts of information.
Step-by-step explanation:
The device that made it possible for digital computers to efficiently process large amounts of information is the microprocessor. A microprocessor is an integrated circuit that implements a computer processor, allowing it to store and manipulate data to perform various functions.
It is not usually visible to the programmer or processor, but it plays a crucial role in improving the performance of data movement between main memory and processor registers.