▁general ▁public ▁under ▁the ▁new ▁name . ▁ ▁Se ah or se ▁A ▁rug ged ▁hand h eld ▁computer ▁based ▁on ▁the ▁Newton ▁OS ▁ 2 . 0 , ▁the ▁Se ah or se ▁was ▁back lit , ▁light weight , ▁and ▁dur able , ▁with ▁a ▁variety ▁of ▁integrated ▁communication ▁capabilities : ▁the ▁first ▁CD PD ▁mode m ▁ever ▁in ▁a ▁wireless ▁P DA , ▁PC M CI A ▁slot , ▁W L AN ▁mode m , ▁and ▁a ▁mod ular ▁snap - on ▁nose ▁for ▁optional ▁G PS ▁and ▁diff used ▁inf ra red ▁capabilities . ▁A ▁rug ged ▁boot ▁protected ▁Se ah or se , ▁while ▁large - cap acity , ▁slide - in ▁re charge able ▁batter ies ▁provided ▁around ▁eight ▁hours ▁of ▁continuous ▁use . ▁T ogether ▁these ▁features ▁made ▁Se ah or se ▁a ▁good ▁solution ▁for : ▁remote ▁hand h eld ▁access ▁to ▁customer ▁service ▁databases , ▁wireless ▁Internet ▁access , ▁precision ▁location ▁applications ▁util izing ▁hand h eld ▁G PS ▁systems , ▁and ▁wire lessly ▁accessing ▁corpor ate ▁and ▁Internet ▁databases ▁to ▁util ize ▁sch emat ics ▁and ▁manual s ▁while ▁in ▁the ▁field . ▁ ▁Digital ▁Ocean ▁began ▁sales ▁of ▁the ▁Se ah or se ▁in ▁ 1 9 9 6 . ▁Though ▁not ▁its ▁original ▁intention , ▁the ▁Se ah or se ▁arg u ably ▁contained ▁all ▁the ▁intellectual ▁property ▁and ▁engineering ▁in ▁one ▁integrated ▁device ▁to ▁const itute ▁the ▁world ' s ▁first ▁smart phone , ▁as ▁defined ▁by ▁four ▁parameters :