div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: Highlands Cottage Computer Center · 2018 6 21 · 10 Vladimir Kosma Zworykin 1889 — 1982: catalyst of television pictures selenium cells have a slow response time he did src=https:reader036fdokumentcomreader036viewer202208161960f7ca97086963097403304chtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: Highlands Cottage Computer Center · 2018 6 21 · 10 Vladimir Kosma Zworykin 1889 — 1982: catalyst of television pictures selenium cells have a slow response time he did src=https:reader036fdokumentcomreader036viewer202208161960f7ca97086963097403304chtml5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdiv