Final answer:
Horizontal applications are software designed for universal use across multiple industries, unlike vertical applications that target specific sectors. Examples include word processors and spreadsheets.
Step-by-step explanation:
A horizontal application refers to software designed to be universal in its utility, supporting a wide range of industries and users with different expertise levels. Unlike a vertical application, which is specialized for a particular industry or department, a horizontal application can be used across various sectors. Examples of horizontal applications include word processors, spreadsheets, and presentation software, which are essential tools in numerous business and educational settings.