Basics of I/O systems

Question 1

What is input/output (I/O) in computing?

Answer 1

The communication between a computer and the outside world, including human users and other systems.

Question 2

What are I/O devices?

Answer 2

Hardware components used to input data into or output data from a computer (e.g., keyboard, mouse, printer, disk).

Question 3

What is the role of an I/O subsystem in an operating system?

Answer 3

To manage communication between the OS and I/O devices efficiently and safely.

Question 4

What are the components of the I/O subsystem?

Answer 4

1) I/O devices, 2) Device controllers, 3) Device drivers, 4) OS-level I/O management.