To understand why Linux has become so popular, it is helpful to know a little bit about its history. The first version of UNIX was originally developed several decades ago and was used primarily as a research operating system in universities.
Usage Note: Disabled is the clear preference in contemporary American English for referring to people having either physical or mental impairments, with the impairments themselves preferably termed disabilities.
Medical Definition of DISABLED. : incapacitated by illness, injury, or wounds; broadly: physically or mentally impaired. Dictionary: Definition of disabled. Thesaurus: All synonyms and antonyms for disabled.