How Do You Spell HP COS?

Correct spelling for the English word "HP CoS" is [ˌe͡ɪt͡ʃpˈiː kˈə͡ʊ ˈɛs], [ˌe‍ɪt‍ʃpˈiː kˈə‍ʊ ˈɛs], [ˌeɪ_tʃ_p_ˈiː k_ˈəʊ ˈɛ_s] (IPA phonetic alphabet).