He adds it would be expensive to overhaul the whole system from analogue to digital.
BBC: Net profits for African journalists
"Malawi is still using analogue types of phones while we (MalawiNet) are using digital so for the system to configure from the analogue to the digital it kind of slows down connectivity, " she says.
Holography and optical correlation are both inherently analogue processes that can degrade the clean 1s and 0s required in a digital system.
ECONOMIST: Optical recognition
应用推荐
模块上移
模块下移
不移动