Conventional current. A question about DC current flow.
I just started reading electronics for dummies and it tells me that DC current flows from negative to positive. It later states that in the early days of electronics it was assumed that current flowed from positive to negative. Later they discovered that it flows from negative to positive.
Some schematics will have an arrow for current flow going from positive to negative (conventional flow). Why do they still do this if they know the current flows from negative to positive? This is confusing.