14-07-2017, 11:37 AM
Mike, it's all part of the evolution of technology!
Where lines crossed they were connected unless the crossover symbol was included in one of the lines. The dot to show that two straight lines were joined came later.
These days, of course, the little crossover thing has vanished and total reliance is placed on the dot for indicating a junction which, to my mind, is a retrograde step because a poor photocopy might not show the dots up very well and even add some extra ones into the bargain!
Freehand drawn circuits are even worse and I would always show the crossover clearly on any quick drawing to make doubly sure that it can't be misrepresented.
Where lines crossed they were connected unless the crossover symbol was included in one of the lines. The dot to show that two straight lines were joined came later.
These days, of course, the little crossover thing has vanished and total reliance is placed on the dot for indicating a junction which, to my mind, is a retrograde step because a poor photocopy might not show the dots up very well and even add some extra ones into the bargain!
Freehand drawn circuits are even worse and I would always show the crossover clearly on any quick drawing to make doubly sure that it can't be misrepresented.
