Theres a vision client to make sure of what peopel are doing on there computer across a network, who makes it?

Question

they use it at my school andi want to use it to check up on my sister

Answer 1

There are more than one of these on the market. This is what we use where I work (school district), but it isn't free.

http://www2.smarttech.com/st/en-US/Products/SynchronEyes+Classroom+Management+Software/