RealVNC

RealVNC means Virtual Network Computing. It is remote control software which allows you to access a server computer from another one named viewer. The two computers do not 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. This version includes both the VNC server and viewer.

Setup wizard is simple and this software do not need much time to be installed .Other networking server clients are UltraVNC and TightVNC
RealVNC has 2 major options:
1.VNC Server
2.VNC Viewer
Server allow your computer to act like a server and to permit access to the computer from another location via Internet.You can set a password for VNC server or use without password (we recommend to configure a password). You can accept connection by a specific port ,disconnect all clients after a desired time period or accept connection from specific destinations. You can import VNC settings from other version and treat new connections as shared.
Viewer requires to type the server address.If the VNC server have a password,you will be asked to type this.
Viewer options:
- encoding
- inputs (can save clipboard changes to server,enable mouse emulation for VNC)
- load or save
This tool has a GNU general public license and was developed from 1991. Help center can be found at www.realvnc.com/support/index.html.

>have quick access to other computer
>can use password to block unauthorized access