input/output

[in-poot-out-poot]

noun

1. the process of input or output, encompassing the devices, techniques, media, and data used.

   A good first step in designing a program is to define the input/output.

adjective

1. pertaining to input or output: I/O

   Early input/output devices were slow.

input/output

noun

1. I/O. the data or information that is passed into or out of a computer

2. (modifier) concerned with or relating to such passage of data or information

Word History and Origins

Origin of input/output¹

First recorded in 1910–15