Samsung Galaxy S20 Ultra zoom put to the test
BBC Click's Lara Lewington goes hands-on with Samsung's latest smartphone.
Author Archives: BBC News - Technology
China launches coronavirus ‘close contact detector’ app
The announcement highlights the high level of Chinese government surveillance of its citizens.
Blockchain: The revolution that hasn’t quite happened
Blockchain was hyped as a secure and cheap way to store or retrieve data, but it is yet to take off.