Back in the 80s, I had a non-ops ATCO colleague who had a flight strip pinned to his office noticeboard with '1940s technology' written on it and crossed out with '1950s technology', '1960s technology' and '1970s technology' all crossed out and '1980s technology' left clear. There wouldn't have been space to get up to '2010s technology'! Back then, we thought that paperless operation was just around the corner (a bit like nuclear fusion for power generation). The only change since then seems to be that strips have got a bit shorter.