This is a short note on how to install VNC server on Raspberry PI.

Step 1
The VNC server is not installed by default in Raspbian, so first install using apt-get:
sudo apt-get install tightvncserver
Step 2
Make a script file to start the VNC server:
nano startVNC.sh
Enter the following:
#!/bin/sh
vncserver :0 -geometry 1920x1080 -depth 24 -dpi 96
Save the file; Ctrl+o , Enter and the Ctrl+x.
Step 3
Make the file executable:
chmod +x startVNC.sh