Atari 2600

• CPU: MOS Technology 6507, 8-bit, 1.19 MHz
• Memory: 128 bytes (yes, bytes, not kilobytes!)
• ROM: Game cartridges from 2 KB up to 4 KB standard; later bankswitching allowed larger sizes
• Graphics: TIA (Television Interface Adapter) chip, 160×192 resolution, 128 colors, 2 player sprites + 2 missiles + 1 ball
• Sound: TIA-generated audio, 2-channel simple waveform sound
• Input: 2 joystick ports, optional paddle controllers
• Storage: ROM cartridges only (no internal storage or disk drive)
• Power Supply: External 9V DC adapter
• Weight: ~1.4 kg (3.1 lbs)

• Operating System: The Atari 2600 did not have a traditional operating system like modern computers. Instead, it was essentially a bare-metal system: each game cartridge contained its own program and code that ran directly on the hardware.
• Supported Languages: Games and software were written in 6502/6507 assembly language, the low-level language of the CPU. There was no high-level OS support, so each game had to manage graphics timing, sound, and input manually. Some homebrew or experimental tools later allowed limited BASIC-to-Atari translation or development environments, but these were unofficial and not part of the original console.

• One of the first successful cartridge-based home video game consoles, letting users swap games easily.
• Popularized home video gaming, sparking the modern gaming industry.
• Introduced the concept of “console as a platform”, not just a single built-in game.
• Originally called the Atari Video Computer System (VCS); renamed Atari 2600 in 1982.
• Sold over 30 million units worldwide, making it the most popular console of its era.
• Famous for “E.T. the Extra-Terrestrial”, one of the first video game commercial failures, often cited in discussions of the 1983 video game crash.
• Known for “racing the beam” programming, where developers had to sync code with the TV’s electron beam, a unique hardware challenge.
• Only 128 bytes of RAM, yet produced games with impressive graphics and sound.
• Some programmers could fit entire games into 4 KB cartridges, an exercise in extreme optimization.
• A cultural icon that marked the beginning of home digital entertainment.
• The Atari 2600 was programmed at the hardware level, making it a fascinating example of early “embedded computing” where programmers had to optimize every byte and cycle.

Andrew Miles