Indonesia is the largest archipelago and fourth most populous country in the world, consist of five main island such as Sumatra, Java, Kalimantan, Sulawesi and Papua, covering 33 province. Has about 13.466 island, but only about 6.000 inhabited islands. This archipelago stretches 5.150 kilometers between mainland Australia to Asia and the Pasific Ocean and India split at the equator. Indonesia's name comes from two greek word " Indo ", meaning indian and " Nesos " meaning island. So Indonesia is an archipelagic nation with a capital of Jakarta as the center of government.