Taiwan is an island country located off the coast of southeastern China. It is approximately 245 miles (395 km) long (north-south) and 90 miles (145 km) across at its widest point. The capital of Taiwan is Taipei, and the official language is Chinese. Taiwan is a self-governing island with a population of approximately 23.21 million people. The country has a complex political history, and it is officially known as the Republic of China (ROC). The ROC government has jurisdiction over 22 islands in the Taiwan group and 64 islands to the west in the P’eng-hu (Pescadores) archipelago. Taiwan is a global leader in the production of computer technology, semiconductors, and other high-tech products.