which turns the sound on or off from the internal speaker, P (pause) to pause the game, and three action buttons A, B and C. On the back there is a contrast dial for the LCD. The game cartridges contain the main processor and ram, similar to the Microvision, as well as the monochrome 32x16 LCD with a color overlay with fixed sprites for the game graphics. They clip on the back of the display, and connect via 36 pins, with two 18-pin connectors on each side, and are necessary for turning on the console. The back of the cartridge contains a decal with the name of the console (PVS or Super Micro) and the name of the game. The LightPak uses two AA batteries to power six light bulbs behind a textured diffuser to provide a back-light to the screen, and clips on top of the cartridge, enclosing it on its plastic shell. This is considered optional as it doesn't connect to the main circuit of the console like the cartridges do, and a room with adequate lighting makes it unnecessary for play, but the manual advises against direct sunlight. The LightPak works by using the LCD to cover up the entire overlay of sprites with black squares (pixels), except the sprites being used at that moment. The light shines through the back of the translucent overlay and screen for visibility with either the light pack or ambient light. Retail configurations Each component of the console could be ordered separately, or a Deluxe Pack that included one Super Micro, one game cartridge, and one LightPak. The packaging for both the Deluxe Pack and the games follows a unique code format, "A-x00x-B". A represents the first letter of the game included in the packaging. x00x could be either 100x, meaning it is included with the console, or 200x, meaning it is just the cartridge. The last number is the number of the game. B could either be P, indicating the console was inside (possibly meaning PVS or Palmtex), or C, indicating it was only the cartridge. Hardware problems The console is infamous for being of poor quality construction. The plastic is described as light and brittle. Due to the use of plastic clips during assembly of the cartridge and LightPak, as well as opening/closing the clam-shell design of the console, every time it is used, it seems at risk of