Buses like the S100 have a problem: plug-and-play is next to impossible with them. When you plug a memory board, you have to set the switches to its address and the same happens with I/O and storage - everything must be configured more or less by hand. The S-100 is, more or less, the naked processor bus.
The ISA bus is a lot like S-100 - it was possible to buy a PC on a card and plug it into a PC backplane along your other cards.
The ISA bus is a lot like S-100 - it was possible to buy a PC on a card and plug it into a PC backplane along your other cards.
But I agree. The 5150 was an abomination.