Welcome to the machine. We at Quintal are not just a bunch of theoretical whacks. The objective of all this hype is the pocket rocket, our wallet-sized communicator. Designed to maximize the screen when we shrink the package, HEET packs a minimum screen size of 199 pixels x 265 pixels. This allows for a one pixel grid of 6 x 8 cells, each cell having a 32 pixel x 32 pixel space. The 6 x 8 aspect ratio is convenient because Data Surfer is about cards, particularly trading cards and playing cards. While playing cards don't seem to have a particular standard size, trading cards deÞnitely do, measuring 2-1/2 x 3-1/2 inches. This is a 5 x 7 aspect ratio, nice for a slim screen, but add one horizontal row and one vertical column (column, row, whatever) of like size "buttons" and we fatten the screen up to a more respectable 6 x 8.

The screen with the one pixel grid, allows standard 32 pixel x 32 pixel icons or tiles to be posted in the cells. The entire screen can be a mosaic of 48 tiles with one pixel grout lines. Naturally, the grout lines can disappear and the mosaic form a single image with a border.

In mapping out an editors layout on a 480 x 640 screen the one pixel grid lines allow just enough room for a 10 x 10 grid, an 8 x 8grid, one ten icon long button bar with scroll controls, and three eight icon long button bars with accompanying scroll controls. The desktop can provide the programming tool to the pocket rocket through a window in the 8 x 8 grid.

But, if we want to take full advantage of ALGO 4913, we must be mindful of that "awkward" 34 bit x 34 bit x 34 bit block that is the kernel of the system. In a one bit deep, black and white slice this appears as a one bit frame around a 32 bit x 32 bit black and white icon tile. Edge to edge, a 6 x 8 mosaic of 34 bit tiles shows a two pixel grid in the middle, sometimes useful for visually reading the frame which may carry the code of the tile (icon) name. Therefore, the screen should be a minimum of 204 pixels x 272 pixels. Add an 8 pixel border to minimize "edge" effects and we come up with a pre-ferred screen size of 220 pixels x 288 pixels, very manageable by current matrix design standards.

In a micro display the screen is everything. The rest is a control package. In maximizing the screen and minimizing the package, the user controls mount in a perimeter frame that protects the screen and dispenses with the keyboard. Since HEET is designed as a game player, the frame is equipped with tandem, pressure sensitive joy buttons, and dual A and B Þre buttons, duplicated in an alternate position for comfort. As an airway communicator, the device is net-wise with communication capabilities for contacting other users directly.

HEET packs a lot of screen on a small shell, with as much power as you can afford to cram inside.

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