This document discusses disaster management and provides information on different types of disasters, both natural and man-made. It defines disasters as hazards causing heavy loss of life, property, and livelihood. It then summarizes the main types of natural disasters like floods, cyclones, and droughts, and how they negatively impact people. Man-made disasters are also outlined, such as deforestation, terrorism, pollution, and wars. The effects of disasters on daily life and emergency systems are described. The need for and phases of disaster management - including prevention, mitigation, preparedness, response, and recovery - are defined. The role of information technology in disaster management is also summarized.