- engine ering ▁sub groups ▁ ▁Inter mediate ▁in ▁Computer ▁Sciences ▁includes ▁computer ▁sciences ▁and ▁al lied ▁sub groups ▁Each ▁stream ▁consists ▁of ▁three ▁elect ives ▁and ▁as ▁well ▁as ▁three ▁comp uls ory ▁subjects ▁of ▁English , ▁Ur du , ▁Is l ami y at ▁( grade ▁ 1 1 ▁only ) ▁and ▁Pakistan ▁Studies ▁( grade ▁ 1 2 ▁only ). ▁The ▁stream ▁must ▁be ▁chosen ▁carefully ▁as ▁a ▁student ▁can ▁only ▁enter ▁a ▁certain ▁reg ulated ▁professional ▁program ▁if ▁he ▁has ▁completed ▁the ▁required ▁courses , ▁for ▁example ▁only ▁those ▁students ▁may ▁en roll ▁in ▁a ▁medical ▁college ▁who ▁have ▁taken ▁the ▁pre - med ical ▁F . Sc ▁exam ination . ▁ ▁G CE ▁O , ▁AS ▁and ▁A ▁Level s ▁Altern ative ▁qual ifications ▁in ▁L ah ore ▁are ▁also ▁available ▁but ▁are ▁maintained ▁by ▁other ▁exam ination ▁bo ards ▁instead ▁of ▁B I SE . ▁The ▁increasing ly ▁common ▁alternative ▁is ▁the ▁General ▁Cert ificate ▁of ▁Education ▁( or ▁G CE ), ▁where ▁SS C ▁and ▁H SC ▁are ▁replaced ▁by ▁Ord inary ▁Level ▁( or ▁O ▁Level ) ▁and ▁Advanced ▁Level ▁( or ▁A ▁Level ) ▁respectively . ▁Other ▁qual ifications ▁include ▁I GC SE ▁which ▁rep laces ▁SS C . ▁G CE ▁O ▁Level , ▁I GC SE ▁and ▁G CE ▁AS / A ▁Level ▁are ▁exam ined ▁by ▁British ▁board ▁of ▁C IE ▁of ▁the ▁Cambridge ▁Ass ess ment , ▁while ▁I GC SE ▁and ▁A ▁Level ▁can ▁also ▁be ▁exam ined ▁by ▁E