Sell-phone or cellphone

Source: www.revoseek.com Martin Cooper and his team developed in 1973, a device called Motorola Dyna TAC but it was only in October, 1983 that the telecom company made the phone available for sale because of the lack of network coverage during that time. The size of the handset was reduced six years later and the next generation phones were developed by them. Small and fast phones began to be manufactured by Nokia, Sony, LG and Samsung.  The revolution started out by Motorola now has taken over by other companies and around 60 percent of today’s global population owns cellphones.