Slow keys is a feature of computer

desktop environments In computing, a desktop environment (DE) is an implementation of the desktop metaphor made of a bundle of programs running on top of a computer operating system that share a common graphical user interface (GUI), sometimes described as a graphica ...

. It is an accessibility feature to aid users who have

physical disabilities A physical disability is a limitation on a person's physical functioning, mobility, dexterity or stamina. Other physical disabilities include impairments which limit other facets of daily living, such as respiratory disorders, blindness, epileps ...

. Slow keys allows the user to specify the duration for which one must press-and-hold a key before the system accepts the keypress.

External links

How to configure Slow Keys in Microsoft Windows 10
{Desktop-environment-stub Computer accessibility User interface techniques