Installed base

Number of units of a product or service in use

Installed base of a product is the number of units that are currently in use by customers. It provides a measurement of a company's existing customer base and the extent of their investment in a particular product or technology. In contrast to market share, which only reflects sales over a specific period and relative to the total market, the installed base represents the number of units currently in use. This information can be used to evaluate a company's customer base, investment, and market position.

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