## Input
Measurement Computing I/O

SuperLab supports I/O (input/output) devices made by Measurement Computing. Although only the PCI-DIO24 I/O card model is listed in SuperLab, other I/O devices will probably work as is. By default, SuperLab uses Port A for input and Port B for output.

SuperLab automatically creates eight responses for the eight input lines available on Port A. You can edit or delete them. A response can consist of a key press or a key release. If you need a response that consists of a key release, make sure that the Ignore the key release checkbox in the Options tab is turned off. It is a good idea to give the response a descriptive name, e.g. “target” or “same”.

To send event markers or for interacting with external devices, see the Digital Output event type.

### Available Options

The following options are available:

- Ignore the key release: If your experiment needs a response that consists of a key release, this option should be turned off. Otherwise it is a good idea to keep this option turned on.

- Wait until the key is released: When this option is turned on, SuperLab will not advance to the next event or the next trial (depending on which sub-option is selected) until the I/O line has been released.

### See Also

- Digital Output event type