👉 External I/O, or Input/Output, refers to the processes and mechanisms by which a computer system interacts with its external environment, encompassing all data transfer and device communication outside the system's memory and processing units. This includes reading data from devices like keyboards, mice, and storage media (such as hard drives and USB drives), as well as sending data to peripherals like monitors, printers, and network interfaces. External I/O is crucial for enabling user interaction, data exchange with other systems, and the overall functionality of a computer, facilitating tasks ranging from simple text entry to complex data processing and communication.
