Input/Output Operations refer to the processes that allow a computer to receive data from the outside world and send data back out. The input part involves devices like keyboards, mice, and scanners that help users provide information to the computer. This data is then processed and stored for further use. The output part involves devices such as monitors, printers, and speakers that display or produce the results of the computer's processing. Together, these operations enable effective communication between the user and the computer, facilitating tasks like data entry, processing, and result presentation.