The Zektor ZVG is PC driven, parallel port vector generator for driving WG, Amplifone, Sega, and Vectrex monitors. It can also be used to drive oscilloscopes. The ZVG is an analog vector generator and draws the very smooth stepless vectors that only an analog generator can product. No jaggies! Tempest, Asteroids, and Star Castle are just three of the most remembered, played, and collected vector graphics games of the 80's. Remember the arcades of the 80's? Those blocky, raster-based graphics that kind of looked like a cartoon of a guy climbing ladders and jumping over flat barrels thrown by a flat two dimensional monkey? Or how about a game were a slice of yellow pizza runs around a maze eating squarish dots, and flat floating ghost? These used typical raster-based scanning monitors much like the typical CRT PC monitor or TV. In the midst of those games were the vector-based games, like Tempest and Asteroids Deluxe, drawn with lines and dots, but with resolutions that allowed those boulders to move smoothly across the screen, and for a tank in a game like Armor Attack to look somewhat like a tank. It allowed for 3D zooming in Tempest and Tailgunner, and allowed full 3D playing fields in Battlezone, Red Baron and Star Wars. The vecotr graphics stood out against the raster games as the most "Hi-Tech" video games of the era with bright colors and fast gameplay. More than 30 vector based games were made in the 80's. Acquiring a collection of all of these games would be a monumental feat. Just finding that many vector monitors alone would be no easy task, not to mention the cost! Vector based arcade monitors haven't been made in more than 20 years. And you can't simply use one vector monitor for all these games. Each vecotr monitor has different design specifications and runs at different speeds, making them incompatible among different gaming hardware. The unique game hardware itself makes multigame conversion kits difficult to design. And good luck finding an Aztarac, Sundance, 4-Player Eliminator, or even a Zektor cabinet! You can try to collect vector games for years but soon realize that you can never have them all. Zektor looked for an alternative: Why not build a Vector Generator that would easily attach to a standard PC, and run all the games supported by an emulator, such as MAME, on a single vector monitor? The ZVG (Zektor's Vector Generator) is just that, a PC controlled Vector Generator. The ZVG attaches to an ECP compliant printer port and a vector monitor. Allowing MAME to run all the games supported by these emulators on a real vector monitor complete with all the intensity and cool effects that only a vector monitor can produce!