Sun (founded 1982) was certainly not the first. The Apple II (1977) put CTRL to the left of A, and every other II followed suit. I'm sure they weren't the first, either. The original IBM PC's Model F keyboard (1981) put control to the left of A, too.
The Macintosh didn't originally have a CTRL key, so Caps Lock went there. The first Mac to have CTRL seems to be the Macintosh II and SE, where you were offered the choice of the Apple Keyboard (control left of A) or Apple Extended Keyboard (caps lock left of A). Thus began decades of confusion.
Interestingly, the NeXT keyboard (1988) had no caps lock.
The Macintosh didn't originally have a CTRL key, so Caps Lock went there. The first Mac to have CTRL seems to be the Macintosh II and SE, where you were offered the choice of the Apple Keyboard (control left of A) or Apple Extended Keyboard (caps lock left of A). Thus began decades of confusion.
Interestingly, the NeXT keyboard (1988) had no caps lock.