Seagate buys Samsung division

US firm Seagate has bought Samsung’s hard disk unit for $1.4bn (£860m). The acquisition of the loss-making hard disk drive (HDD) business pits it head-to-head with Western Digital Corp in an industry that has been dogged by price wars. The sector is battling persistent sales growth declines and faces a longer-term threat from wireless tablet devices such as Apple's iPad that use more power-efficient flash drives.