13-05-2022, 10:52 AM
There were two optional commercial sound options. One is the Beethoven which is an AY-3-8910 PSG that's plugged into the parallel User port & the other is an optional onboard chip for the Alpha Plus (Premium Series) a TI SN76489A.
The Beethoven also comes with two D9 Joystick ports.
The Beethoven has to be driven in a peculiar way and is documented in the Beethoven manual.
Some emulators emulate the SN76489 but not necessarily perfectly.
Even rarer, the microbee is also capable of driving MIDI instruments by either using a DRAM coreboard's SCC (Serial Communications Controller) with a MIDI dongle or directly attached Roland MPU-401 MIDI interface. So if you really want, you can connect & play Roland MT-32 sounds.
The Beethoven also comes with two D9 Joystick ports.
The Beethoven has to be driven in a peculiar way and is documented in the Beethoven manual.
Some emulators emulate the SN76489 but not necessarily perfectly.
Even rarer, the microbee is also capable of driving MIDI instruments by either using a DRAM coreboard's SCC (Serial Communications Controller) with a MIDI dongle or directly attached Roland MPU-401 MIDI interface. So if you really want, you can connect & play Roland MT-32 sounds.