bˈeɪsɪk ɪlˈɛvən wʌzɐ dˈaɪəlɛkt ʌvðə bˈeɪsɪk lˈæŋɡwɪdʒ fɔːɹ pˌiːdˌiːpˈiː ɪlˈɛvən ˈɑːpɚɹˌeɪɾɪŋ sˈɪstəmz sˈʌtʃ ɐz ˌɑːɹɹˌɛsˈɛks ɪlˈɛvən, ˌɑːɹtˈiː ɪlˈɛvən, tˌiːˌɛsˈɛks ænd tˌiːˌɛsˈɛksplˈʌs.
BASIC-11 was a dialect of the basic language for PDP-11 operating systems such as RSX-11, RT-11, TSX and TSX-Plus.