, ▁where ▁they ▁extend ▁ ▁to ▁form ▁a ▁border ▁marker ▁between ▁Brazil ▁and ▁sout he astern ▁Venezuela ▁and ▁between ▁Brazil ▁and ▁west ▁central ▁Guy ana . ▁▁▁ ▁N umer ous ▁rivers ▁origin ate ▁in ▁these ▁mountains ▁and ▁on ▁their ▁way ▁down ▁they ▁pl unge ▁spect ac ular ly ▁to ▁form ▁some ▁pictures que ▁water falls . ▁A ▁beautiful ▁example ▁of ▁this ▁is ▁the ▁K ai ete ur ▁F alls ▁in ▁Guy ana . ▁ ▁Conserv ation ▁The ▁ ▁Monte ▁R ora ima ▁National ▁Park ▁protect s ▁part ▁of ▁the ▁range ▁in ▁R ora ima , ▁Brazil . ▁ ▁See ▁also ▁ ▁References ▁ ▁Category : Mount ain ▁ranges ▁of ▁Brazil ▁Category : Mount ain ▁ranges ▁of ▁Guy ana ▁Category : Mount ain ▁ranges ▁of ▁Venezuela ▁Category : Gu ay ana ▁High lands ▁Category : Mount ains ▁of ▁Bol í var ▁( state ) ▁Category : Land forms ▁of ▁R ora ima ▁Category : B raz il – G uy ana ▁border ▁Category : B raz il – V enez uela ▁border ▁Category : G uy ana – V enez uela ▁border <0x0A> </s> ▁Um tech ▁In cor por ated , ▁also ▁known ▁as ▁Video Brain ▁Computer ▁Company , ▁was ▁an ▁early ▁entr ant ▁in ▁the ▁personal ▁computer ▁market ▁that ▁developed , ▁manufact ured , ▁and ▁market ed ▁the ▁first ▁computer , ▁Video Brain , ▁sold ▁in ▁department ▁stores . ▁ ▁Although ▁Video Brain ▁generated ▁major ▁excitement ▁and ▁strong ▁orders ▁when ▁it ▁was ▁introduced ▁at ▁the ▁January ▁ 1 9 7 8 ▁Cons umer