Fallout 4 cultural references

Commodore 64
The boot-up screen of the Pip-Boy 3000 Mark IV has 64kb of RAM and 38911 bytes free.

20 000 Leagues Under the Sea
The quest 20 Leagues Under the Sea is a reference to 20 000 Leagues Under the Sea.

Donkey Kong
The game Red Menace is a reference to the 1981 Nintendo game Donkey Kong.

Missile Command
The game Atomic Command is a reference to the 1980 Atari game Missile Command.

Mad Max 2: The Road Warrior
One of the names that are supported by Codsworth is Toadie, a name of a minor character in Mad Max 2.

Back to the Future
Codsworth supports both the names Marty and Mcfly. This is a reference to Michael J. Fox's character in the film franchise.