unt let , ▁Ga unt let ▁II , ▁A . P . B ., ▁P aper boy , ▁Road Bl aster s , ▁ ▁V ind ic ators ▁Part ▁II , ▁and ▁finally ▁Es cape ▁from ▁the ▁Planet ▁of ▁the ▁Rob ot ▁Mon sters . ▁Also ▁used ▁on ▁the ▁IBM ▁PS / 2 ▁Spe ech ▁Ad apter ▁and ▁the ▁Pacific ▁Edu c ational ▁Systems ▁R S - 2 3 2 ▁Spe ech ▁adapter . ▁Man ufact ured ▁into ▁the ▁early ▁ 1 9 9 0 s . ▁ 1 9 8 5 ▁T SP 5 0 C 5 0 : ▁C M OS , ▁uses ▁L PC - 1 2 ▁instead ▁of ▁L PC - 1 0 , ▁uses ▁T MS 6 0 C 2 0 ▁ 2 5 6 K b / 3 2 K i B ▁serial ▁R OM ▁instead ▁of ▁T MS 6 1 0 0 . ▁Us es ▁' D 6 ' ▁L PC ▁tables ▁and ▁ch ir p ▁tables , ▁which ▁were ▁common ▁for ▁the ▁whole ▁T SP 5 0 C xx ▁series . ▁Has ▁built ▁in ▁low - pass ▁analog ▁filter . ▁Man ufact ured ▁into ▁the ▁early ▁ 1 9 9 0 s . ▁ 1 9 8 6 ▁T SP 5 0 C 4 0 ▁( l ater ▁M SP 5 0 C 4 0 ): ▁T SP 5 0 C 5 0 ▁plus ▁a ▁simple ▁ 8 - bit ▁micro controller ▁with ▁on - ch ip ▁mask ▁R OM . ▁Was ▁used ▁in ▁a