I think number of such machines in developing countries is much larger then in developed. In 80s, people said "it is good, that we don't have western infrastru

I think number of such machines in developing countries is much larger then in developed. In 80s, people said "it is good, that we don't have western infrastructure, because when become democracy and need it, will build all new from zero". What really happened then, few waves of upgrades at West, when obsolete systems exported to developing countries very cheap. But this is not whole picture. As First World is just about Billion humans (from more than 6 Billion at about Y2K) and have very limited land, number of obsolete systems exported to developing countries is just not enough for their size, so developing countries could not build whole infrastructure from just obsolete systems from West, but have to do (or to buy) something other. So now, developing countries usually have mixed infrastructure, partially already obsoleted when imported systems, partially modern systems (many made in China), and partially some custom, even literally hand-made or garage-production.