Neither of those types of
expansion devices existed at the time that the first Apple II came off
the
line, but the inclusion of slots in the design allowed them to be used
when
they were developed later.
And was probably intsrumental in encouraging the development of such
devices.
I hate to be the bearer of bad news, but card edge expansion devices
did exist before the Apple II, otherwise there would have been no
card slots to buy to put in them. They existed, maybe not in a personal
computer, but they did exist. I should know. I inserted many a new card
into the control of an NC machine in the early '70's.