VNC stands for Virtual Network Computing. It is remote control software which allows you to view and interact with one computer (the "server") using a simple program (the "viewer") on another computer anywhere on the Internet.
The two computers don't even have to be the same type, so for example you can use VNC to view an office Linux machine on your Windows PC at home.
VNC is freely and publicly available and is in widespread active use by millions throughout industry, academia and privately. Interact with a remote computer in a much easier fashion.
"Excellent software, still useing it !"
We used to use this as a backup for our team viewer, and i find it working brilliantly. Especially because of the diversity in the support that we do and the hardware our customers use.