Samsung monitors are plug and play, so software is unnecessary for it to function as a monitor. However, not to leave you without an answer, I believe if you're connecting to your video source with HDMI, it'll be digital, and any other sources will be analog.
I installed the monitor display adapter (samsung monitor installer) and there are two options to install for this monitor model, analog or digital
which option should I install?
its a samsung synchmaster B2230HD.
Thanks and regards.