Title: Explain the concept of functions.
Course: Database Design and Management (Oracle) (10052) > Section: Performing Single-Row Functions

Explanation should include the following:

- A function takes an input, executes a process, and produces an output.
- A function is an implementation of the input-process-output (IPO) model of computing.
- The IPO model receives inputs from a user or other source, performs some computations on the inputs, and returns the results of the computations.