Back from the Grave: Atari 2600 (Skewed, garbled screen; buzzing)

The console that effectively created, dominated and then almost destroyed the videogame industry, all on its own: The Atari 2600.  Originally launched in 1977 as the VCS (Video Computer System) before being renamed upon the 1982 release of the Atari 5200, it was originally released to play upon the name and reputation of the Fairchild VES (Video Entertainment System) released a year earlier; itself renamed to the Channel F upon the release of the VCS.

The 2600 itself was, even by the day's standards, an unimpressive machine.  While it featured a 1MHz 6507 (similar to the 6502 found in the Apple II and VIC-20, just with fewer addressing pins), it had just 128 bytes (yes, bytes) of RAM, only allowed for 4 kilobyte cartridges (which was later expanded to 32kB by way of bank switching) and had almost zero graphical capability.  But developers managed to use this meager offering to exceptional effect, resulting in games that weren't Pong and securing its place at the top of the proverbial food chain (right up until ET, anyway).