A client-server application that requires nothing more than a browser is called

It is called a thin-client application.

Explanation:

A thin client application runs from resources stored on a main or central server instead of a localized hard drive. This work by networking it to a server-based computing environment that contains most applications, sensitive data, and memory. Thin clients has made companies or establishments to give employees access to certain applications and functions.

Some advantages of thin client include:

i. It is protected from unauthorized access.

ii. Data cannot be copied or lost because it relly on the server.

iii.  Easy management and monitoring of the system due to centralized processing.

The major disadvantage to a thin client is that it depends totally on a network.