w heel , ▁which ▁was ▁replaced ▁by ▁a ▁mini ature ▁track ball ▁to ▁enable ▁full ▁ 4 - way ▁and ▁mouse - style ▁navigation ▁on ▁a ▁Black Ber ry . ▁The ▁look ▁of ▁the ▁new ▁track ball ▁gave ▁the ▁" P ear l " ▁its ▁name . ▁ ▁The ▁ 9 0 0 0 ▁series ▁was ▁launched ▁in ▁ 2 0 0 8 . ▁ ▁Black Ber ry ▁ 1 0 ▁ ▁Android ▁ ▁Table ts ▁ ▁References ▁ ▁External ▁links ▁ ▁Current ▁Black Ber ry ▁Sm art ph ones ▁ ▁All ▁Black Ber ry ▁devices , ▁G S MA ren a . com ▁ ▁Black Ber ry ▁Black Ber ry ▁products ▁Category : Black Ber ry ▁Limited ▁Category : Black Ber ry ▁Category : List s ▁of ▁mobile ▁computers <0x0A> </s> ▁Aless andra ▁Car bone ▁is ▁an ▁ ▁Italian ▁math ematic ian ▁and ▁computer ▁scient ist . ▁She ▁is ▁a ▁professor ▁in ▁the ▁computer ▁science ▁department ▁of ▁the ▁Pierre ▁and ▁Marie ▁Cur ie ▁University . ▁Since ▁ 2 0 0 9 ▁she ▁has ▁head ed ▁the ▁labor atory ▁of ▁computational ▁and ▁quant itative ▁bi ology . ▁This ▁labor atory ▁studies ▁the ▁function ▁and ▁evolution ▁of ▁bi ological ▁systems . ▁She ▁is ▁a ▁senior ▁member ▁of ▁the ▁Institut ▁Univers itaire ▁de ▁France ▁and ▁received ▁the ▁Ir ène ▁J oli ot - Cur ie ▁Prize ▁in ▁ 2 0 1 0 . ▁ ▁Career ▁ ▁She ▁gained ▁her ▁Ph D ▁in ▁mathematics ▁in ▁ 1 9 9 3 ▁at ▁the ▁City ▁University ▁of ▁New