The bad benefits effects (1) of computers

Despite its their (2) advantages, we can’t ignore the accompanied disadvantages of computers. Computers are filled with all kinds of information, especially the bad news kind (3). A vivid example is when we surf the internet on line online, a pop-up window containing offensive contents arises, which can dominate ruin our enjoyment or slow our speed of working and studying on the computer. The most serious problem is to control limit/monitor children’s time on computers, since they are easily influenced by the internet and addicted to them it (4), failing to resist the its temptation. This is a huge threat to children’s growth and development.

If you find some mistakes, please tell me. Thanks a lot.
As native speakers, what do you think of the article, it is good or bad?

1) benefit = good effect. "Bad benefit" doesn't make sense.

2) "Computers" is plural, so "their" is correct.

3) When talking about information, news = 新闻.

4) "Internet" is singular, so "it" is correct.

这篇文章很大好！好工作！