Computers are great assets to people. These gadgets really help people in conducting different types of tasks every hour of the day. But sometimes even computers have the tendency to break down. They may crash at any time and if users do not save the data, it is very likely for everything to get lost. People can still save the data in backups. But, there is high possibility that even these might not help during emergencies. Earlier, there was not much that people could do to save data.