I think what has been lost is that instead of a slave (not my terminology, it's the one in TFA btw) Actually, it is your terminology! I used the word 'servant'

I think what has been lost is that instead of a slave (not my terminology, it's the one in TFA btw) Actually, it is your terminology! I used the word 'servant' not 'slave'. It was a deliberate choice. My commentary was more about how our visual presentation now takes centre stage, often at the expense of displaying information clearly or usefully. This is a mindset shift and not really a technical issue. So master/slave didn't fit, as that has more precise technical definitions; database replication, disk arrangements, etc.