2. the CS of 2.UO is not very strong. This major is in Canada. Undergraduate course is Waterloo, UT and USF are better, and graduate students UT and Queen are better. In terms of fame, Waterloo is the best.
There are job opportunities, mainly because there are many R&D centers in the telecommunications industry, and the other is the work of government departments. However, due to the influence of the world economic situation, the work situation in Canada is not very good now.
A good city, not as noisy as a big city, is very livable, but boring. Immigration varies from person to person. You can study first and feel before you decide.