翻译(英):家里有电脑的人都可以上网学习我们的课程

因为是商业用语,这里的“可以”我觉得用“welcom”会更好。所以是：
Anyone who own a computer at home is welcome to have our court through the internet.

those who have computer at home can take our courses by the internet.

our online course is available to all those who has a computer at home

Our course is available for those who have computers at home.