For those not close to the PDP family, the numbers don't really mean anything. The 11 is not better than the 10 in any way, they are just the order in which they were released.
The PDP-10 was not a mini-computer for which PDPs are generally associated with, but instead it was a mainframe and had a 36-bit word. The switches were coloured in sets of three to aid in entering octal data (as opposed to hexadecimal).
The PDP-10 was not a mini-computer for which PDPs are generally associated with, but instead it was a mainframe and had a 36-bit word. The switches were coloured in sets of three to aid in entering octal data (as opposed to hexadecimal).