SHANGHAI, July 22 (Reuters) - Shanghai Stock Exchange will launch a new index to track 50 major listed companies from tech-focused STAR board that engage in next generation information technology, the exchange said on Thursday, in a move echoing Beijing's commitment to advance its tech sector.

SSE STAR Next Generation Information Technology Index will be introduced by the Shanghai exchange and China Securities Index Co Ltd on Aug. 16, the bourse said in a statement published on the website.

"The index is to measure the performance of next generation information technology industry of STAR market," it said.

The selected 50 companies would cover a range of areas, such as internet and cloud computing, big data services and artificial intelligence, according to the statement.