On Fri, 1 Jul 2016, Marc Rochkind wrote:
Those original floppies were I believe 160K. If you
paid extra, the box
would hold two drives. Later, IBM introduced double-sided drives, at
320K each.
Those in the know, of course, simply put a notch on the opposite side.
--
Dave Horsfall DTM (VK2KFU) "Those who don't understand security will
suffer."