请教一下澳大利亚JB HI-FI公司的history和major activities

http://www.jbhifi.com.au/
这个是它的网站
你可以自己看一下

JB Hi-Fi was established in Melbourne suburb of Keilor East by John Barbuto (JB) in 1974. Barbuto sold the business in 1983 to Richard Bouris and David Rodd who expanded JB Hi-Fi into a chain of ten stores in Melbourne and Sydney by 2000, when they sold the majority of their holding to private equity. It was subsequently floated on the Australian Stock Exchange in October 2003.

At first, it mainly specialised in Hi-Fi equipment. As the mainstream popularity of vinyl records declined, in 1991 JB Hi-Fi cleared out their entire stock of records and began offering exclusively CDs. They were one of the first Australian music retailers to do so; although recently bringing vinyl records back in stock. This allowed JB Hi-Fi to open many new stores in Melbourne and later expand to other states. The chain now has stores all around Australia and