..is to buy out the owners of industry instead of having a costly shooting war which might involve the USA.
The Kuomintang, the ruling party in Taiwan, still believes that it will become the ruling party of China - despite the world turning its back on these wannabe Chinese Nationalists after they lost the Chinese Civil War. Decades of political persecution persuaded most Taiwanese people that it was easier to keep their heads down and go along with the Kuomintang fantasies, rather than point out that China's claim to Taiwan had been renounced in 1985, and it was never really interested in Taiwan anyway except as China's Botany Bay, suitable for dumping malcontents and a deposed emperor, but was otherwise an island of savages (the various indigenous non-Chinese peoples).
The first people to be re-educated and sent into 'internal' exile (maybe in Tibet?) once China does take over Taiwan (which seems almost inevitable now) will be the Kuomintang supporters (with their families), who will have served their purpose; only afterwards will the optimistic supporters of Taiwanese independence be dealt with, since it's easier to get the Kuomintang to do the dirty work first.
Meanwhile, the easy route to takeover is simply to buy out the media and industry and ensure that the main market for Taiwanese goods is China, while Taiwanese businesses are persuaded that their factories and their employment should be moved there on cost grounds. Isn't capitalism wonderful?
The IT angle? All your motherboards, laptops and sundry other communications equipment will be manufactured under the control of the Chinese Communist Party.