# types

Touch Develop types.

### @parent language
 

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](/reference/types/string)**: a sequence of characters
* **[Number](/reference/types/number)**: an integer number (32-bit signed)
* **[Boolean](/reference/types/boolean)**: true or false
* **[Image](/reference/image/image)**: a collection of [micro:bit LED states](/device/screen) (on/off)
* *more types coming!!!*

### see also

[local variables](/reference/variables/var), [global variables](/js/data), [assignment operator](/reference/variables/assign)