CeBIT Hannover, the world's largest computer fair, started Monday in Germany with Japan this year's partner country. The five-day event showcases the latest trends in digital business, and boasts cutting edge innovations.

Some 200,000 visitors and 3,000 companies from 70 countries and regions are expected to attend this event and experience the leading technologies.

CeBIT also presents talks by tech leaders and forward-looking panel discussions, with guests from such tech firms such as Sony, Microsoft and Hitachi.

The trade fair will focus on the IT innovations that are revolutionizing the business world and put the spotlight on promising startups. This year's buzz words range from cloud technology and IT security to big data and the Internet of Things.

"Important catchphrases here are obviously artificial intelligence, digital assistants, the cloud with which it's possible to have one's data available everywhere and an expression such as 'society 5.0' which you can read about from time to time: a complete digitalization of society which no one can escape anymore," said Juergen Kuri, deputy editor-in-chief of CT computer magazine.

Chinese technology companies including cell phone manufactures Huawei, ZTE and Inspur, a leading enterprise in China's cloud computing and big data area will also showcase their innovative products at this event.