▁and ▁shape , ▁pla cement ▁on ▁the ▁screen , ▁and ▁image ▁within ▁the ▁rectangle . ▁ ▁Software ▁could ▁design ate ▁the ▁color ▁of ▁the ▁image ▁and ▁of ▁the ▁remaining ▁space ▁within ▁the ▁rectangle , ▁usually ▁the ▁background ▁color ▁of ▁the ▁display ▁which ▁was ▁also ▁software ▁select able . ▁ ▁The ▁U M 1 ▁was ▁in ▁turn ▁controlled ▁by ▁an ▁F 8 ▁processor . ▁ ▁The ▁U M 1 ▁fed ▁a ▁stream ▁of ▁pixels ▁into ▁a ▁FI FO ▁buffer ▁which ▁passed ▁them ▁along ▁to ▁be ▁converted ▁into ▁signals ▁that ▁were ▁delivered ▁to ▁the ▁R F ▁anten na ▁input ▁of ▁a ▁television ▁set . ▁ ▁Because ▁the ▁U M 1 ▁delivered ▁the ▁pixels ▁needed ▁for ▁every ▁line ▁on ▁the ▁r aster ▁scan ▁of ▁the ▁TV , ▁rather ▁than ▁using ▁the ▁same ▁pixel ▁stream ▁for ▁every ▁two ▁or ▁more ▁adjacent ▁lines ▁as ▁in ▁then ▁current ▁video ▁games , ▁the ▁Video Brain ▁produced ▁fin er ▁display ▁resolution ▁than ▁most ▁television ▁sets ▁could ▁support . ▁ ▁The ▁U M 1 ▁chip ▁( Pat ent ▁# 4 , 2 3 2 , 3 7 4 ) ▁was ▁designed ▁by ▁John ▁Cos ley ▁and ▁Len ▁Chen ▁under ▁the ▁direction ▁of ▁Dr . ▁Ch ung . ▁▁ ▁A ▁second ▁chip , ▁the ▁U M 2 , ▁was ▁developed ▁to ▁serve ▁as ▁a ▁clock ▁for ▁the ▁entire ▁system ▁and ▁to ▁produce ▁the ▁N T SC ▁( USA ) ▁and ▁P AL ▁( Europe ) ▁sc anning ▁video ▁frames ▁for ▁the ▁TV ▁set . ▁ ▁The ▁P AL ▁version ▁of ▁the ▁U M