A *type* refers to a class of data and the operations permitted on that data. The following types are supported by Touch Develop for the BBC micro:bit:
* **[String](/microbit/reference/types/string)**: a sequence of characters
* **[Number](/microbit/reference/types/number)**: an integer number (32-bit signed)
* **[Boolean](/microbit/reference/types/boolean)**: true or false
* **[Image](/microbit/reference/image/image)**: a collection of [micro:bit LED states](/microbit/device/screen) (on/off)