[TroyWilkins]

Originally Posted by puppypc

The A1000 has a male parallel port, and a female serial port. Both of these ports were reversed in the later models (IBMs as well had a female parallel port, the A1000 was non-standard in this respect).
The expansion slot is also the same as the 500's, with the only difference being that it is on the opposite side so peripherals need to be turned 180 degrees horizontally to fit. There is a persistent misunderstanding that peripherals need to be plugged in upside down, which has resulted in a lot of fried hardware over the decades.

Perfect, thank you!