The only reason computers had a black background was with picture tubes the flyback signal would trigger if the luminesce level was high causing the picture to roll.
Once they'd fixed that (eg MacIntosh), they went back to white.
The only reason computers had a black background was with picture tubes the flyback signal would trigger if the luminesce level was high causing the picture to roll.
Once they'd fixed that (eg MacIntosh), they went back to white.