VNC stands for Virtual Network Computing.
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.
RealVNC is a UK company founded in 2002 by a team from the world-leading AT&T Laboratories in Cambridge. The company was established to commercially develop, enhance and promote VNC, the innovative remote access software with a widespread international user base.
VNC (Virtual Network Computing) software makes it possible to view and fully-interact with one computer from any other computer or mobile device anywhere on the Internet. VNC software is cross-platform, allowing remote control between different types of computer. For ultimate simplicity, there is even a Java viewer, so that any desktop can be controlled remotely from within a browser without having to install software.
VNC has a wide range of applications including system administration, IT support and helpdesks. It can also be used to support the mobile user, both for hot desking within the enterprise and also to provide remote access at home, or on the road. The system allows several connections to the same desktop, providing an invaluable tool for collaborative or shared working in the workplace or classroom. Computer support within the geographically spread family is an ever popular use.
The open source version of VNC has been freely available since 1998, and more than 50 million copies of the software have been downloaded. The software has also appeared on numerous magazine cover disks, and for several years all popular versions of Linux have included VNC. It is in active use by many millions in industry, commerce, education and at home. Virtually all Fortune 500 companies use VNC, and installations of VNC across thousands of workstations are commonplace.