[Tony] posted an interesting video where he looks at the Atari 2600 and ... Unlike many other computers, it would also play Twinkle Twinkle Little Star. The screen resolution was very poor.

[ModPurist] was lucky enough to secure one of the Atari 8-bit computers through bartering with a local game store, an Atari 600XL from around 1983 or 1984, complete with its original box ...

He saw the technique Atari used to simulate colors on its first arcade games ... These pulses can translate into pixels on the computer screen. The Apple II display provided two pixels per subcarrier ...