▁a ▁horn ▁to ▁signal ▁the ▁end ▁of ▁a ▁quarter , ▁but ▁they ▁are ▁not ▁used ▁in ▁larger ▁ven ues . ▁In ▁those ▁cases , ▁the ▁ref eree ▁or ▁public ▁address ▁announ cer ▁denotes ▁the ▁term ination ▁of ▁a ▁quarter ▁voc ally ▁via ▁the ▁PA ▁system ; ▁formerly ▁quarter ▁ends ▁were ▁denoted ▁with ▁the ▁firing ▁of ▁a ▁starting ▁p istol ▁in ▁the ▁era ▁before ▁digital ▁timing . ▁ ▁Basketball ▁A ▁basketball ▁score board ▁will ▁at ▁the ▁minimum ▁display ▁the ▁time ▁left ▁in ▁the ▁period ▁and ▁both ▁teams ' ▁scores . ▁The ▁last ▁minute ▁of ▁each ▁quarter ▁is ▁usually ▁displayed ▁with ▁t enth s ▁of ▁a ▁second , ▁which ▁is ▁required ▁in ▁FI BA , ▁NBA ▁( since ▁ 1 9 8 9 ), ▁and ▁NCAA ▁( since ▁ 2 0 0 1 ). ▁Most ▁high ▁school ▁score boards ▁also ▁include ▁a ▁display ▁of ▁the ▁number ▁of ▁team ▁fou ls , ▁the ▁number ▁of ▁the ▁last ▁player ▁to ▁commit ▁a ▁personal ▁f oul ▁( with ▁the ▁total ▁number ▁of ▁personal ▁fou ls ▁for ▁that ▁player ), ▁the ▁period , ▁and ▁indic ators ▁of ▁which ▁team ▁is ▁in ▁the ▁team ▁f oul ▁penalty ▁situation , ▁and ▁possession ▁( with ▁a ▁separate ▁possession ▁arrow ▁display ▁at ▁half - court ; ▁not ▁used ▁in ▁the ▁NBA ). ▁College ▁basketball ▁score boards ▁include ▁shot ▁clock s ▁and ▁the ▁number ▁of ▁time - outs ▁left ▁for ▁each ▁team , ▁with ▁some ▁high ▁school ▁state ▁athlet ics ▁bodies ▁also ▁beginning ▁to ▁adopt ▁shot ▁clock s ▁to ▁remove ▁end ▁of ▁game ▁st