IPA: /ˈɪnpʌtər/
KK: /ˈɪnpʌtər/
A person or device that provides data or information to a system or process.
The inputter entered the data into the computer system.
Inputter → It is formed from "input" (from Latin "in-" meaning into and "putare" meaning to place) and "-er" (meaning a person who). An inputter is a person who places or enters information into a system.
Think of someone 'placing' ('putare') information 'into' ('in-') a system — that's what an inputter does.