For me it was the arcades, the earliest I remember was at Crabtowne USA. My dad used to take me there sometimes after work. Favorites included Tempest, Mrs Pac man (far superior to her male counterpart), and most of all, Joust.
At home, my first system was the Intellivision - a hand-me-down from my uncle. Triple Action was where it was at - a game I didn’t have, but a friend of my father’s did for his system. So jealous
A I also still remember the day I first saw and played an NES. It was some friend of a friends house and they had Contra. Blew my mind. Played the hell out of that game when I finally got one myself.