Nothing says that the 300s era chips weren't replaced with newer technology that still had the same imprints.
* I'm not trying to argue with you, merely to present a rationale.
Cheers,
Baron Ovka
As much as possible, I think wise designers build new equipment with retro-compatibility.
With a Third Imperium spanning several thousand years and no real technological standard (worlds spanning an average range of TL-6 through TL-15) throughout much of Imperial charted space, retro-compatibility would seem to be pretty darn important.
I can imagine 8-tracks, DVDs, and datacrystals... With higher-tech players containing adaptation interfaces... Or something like that.
Baron Ovka makes an excellent point.
Shalom,
Maksim-Smelchak.