In our days almost all people use computer. We can say that we can't live without it. For teachers it is the useful thing. They can find a material for a lessons, do presentations, create tests and others works.
But some teachers adhere to the old order and do all by themselves. I don't blame them it is them choice. But I think it's easier to work with electronic assistant. Because there is internet where you can find everything what you need. In simple life in every cabinet there is a computer with exit to internet. Teachers have a personal computer.
In conclusion I want to say that computer and teacher it is normal thing. Computer is a "teacher's assistant" who can always help our teachers.
Смотри, если мало, могу добавить.