A chatbot is a type of computer program that is designed to interact with customers, typically on the Internet, which is capable of simulating conversations with people.
The program is capable of simulating conversation due to it being powered by rules, and sometimes artificial intelligence.
Typically this service is used on the Internet, posing as a help assistant and answering basic questions.
The chatbot hit the headlines in 2016 after companies like Facebook revealed that it would deliver automated customer support through its Messenger service. Microsoft also launched a chatbot, called Tay, but the self learning bot learnt a lot of bad things from Twitter feeds and went on racist rants before being taken offline.