To be fair, only Sony follows a consistent naming convention. Nintendo's console names also defy any logic, as did Sega back in the day.

In terms of naming, no other entity in computing will ever be able to surpass IBM solipsistic naming habits:

System 360 OS/2 DB 2 MQ series. PC

It is like IBM just refused to entertain the idea of having competitors, why should it them name a database by any other name than DB?

	▲	adityeah 43 minutes ago \| parent [-]
		That is exactly what IBM thought too when they allowed Bill Gates to license the new OS they were supposed to be making for IBM. They had no competition, who are these kids going to sell their OS to?