Complex sentence: South Korea has developed a thriving computer industry with the Internet use reaching over 50% of the population, currently 25 million citizens are using the Internet, and 14.4 million Korean homes are equipped with Internet access.
Split into simpler sentences: South Korea has developed a thriving computer industry with the Internet use reaching over 50% of the population. Currently 25 million citizens are using the Internet, and 14.4 million Korean homes are equipped with Internet access.