Final answer:
Widgets are mini-applications on a device's home screen that display data and receive updates, providing convenient access to frequently used features or real-time information.
Step-by-step explanation:
What occupies one or more cells on the Home screen and can display data and receive periodic updates is known as a widget. Widgets are mini-applications that run on the device's home screen and provide easy access to frequently used functions or information. These can include weather updates, calendar events, stock tickers, or other real-time data. Widgets are designed to refresh content automatically, depending on the configuration set by the user or app developer.
The subject of the question is Widgets. Widgets are small applications or tools that occupy one or more cells on the home screen of a computer or mobile device. They can display various types of data, such as weather information, news headlines, or calendar events. Widgets can also receive periodic updates to ensure that the displayed information remains current.