On Sat, 20 Oct 2018, Jim Manley via cctalk wrote:
IBM wasn't even aware of the penetration of
dial-up among consumers
and very small businesses, or they would have initially offered
modems, at least as options, if not in package combos. Retailers who
understood the consumer and very small business markets quickly began
offering modems in response to the vacuum that IBM had created.
They DID offer the Async Card (Serial RS-232, AND 20mA) for using modems,
serial printers, etc.
Similarly, although they sold a joystick board, they didn't sell
joysticks. DA15 connector for two joysticks.
In some of the documentation, the sketch of a joystick was clearly the
Radio Shack Coco joystick (which needed a different connector)
LATER, they sold a joystick when the PCJr came out.
--
Grumpy Ol' Fred cisin at
xenosoft.com