pher al ▁devices ▁were ▁also ▁produced ▁in ▁Cuba . ▁ ▁The ▁ES ▁computers ▁were ▁produced ▁in ▁sub series , ▁known ▁as ▁Р я д ▁ 1 , ▁Р я д ▁ 2 , ▁Р я д ▁ 3 , ▁Р я д ▁ 4 ▁( Р я д ▁[ pr on ounced ▁ry ad ] ▁means ▁" series "). ▁ ▁Hard ware ▁models ▁and ▁technical ▁details ▁ ▁The ▁first ▁sub series ▁( Е С ▁Э В М - 1 ) ▁of ▁the ▁ES ▁E VM , ▁released ▁in ▁ 1 9 6 9 – 1 9 7 8 , ▁included ▁the ▁models ▁ 1 0 1 0 , ▁ 1 0 2 0 , ▁ 1 0 3 0 , ▁ 1 0 4 0 ▁and ▁ 1 0 5 0 , ▁which ▁were ▁analog ous ▁to ▁System / 3 6 0 ▁and ▁operated ▁at ▁ 1 0 – 4 5 0 ▁k IP S , ▁and ▁the ▁more ▁rare ▁and ▁advanced ▁versions , ▁in compatible ▁with ▁the ▁IBM ▁versions : ▁ 1 0 2 2 , ▁ 1 0 3 2 , ▁ 1 0 3 3 ▁and ▁ 1 0 5 2 . ▁The ▁electron ics ▁of ▁the ▁first ▁models ▁were ▁based ▁on ▁T TL ▁circ uits ; ▁the ▁later ▁machines ▁used ▁E CL ▁design . ▁ES ▁ 1 0 5 0 ▁had ▁up ▁to ▁ 1 M ▁RAM ▁and ▁ 6 4 - bit ▁floating ▁point ▁registers . ▁The ▁fast est ▁machine ▁of ▁the ▁series , ▁ES ▁ 1 0