Inside a Classic: The TRS-80 Model 100

The Display


The Model 100 sports a serviceable monochrome LCD panel that can display eight lines of 40 characters each, with an overall 240x64 resolution. Such a small resolution might seem limiting today, but for the size and convenience of the Model 100 in 1983, it was enough. In fact, Gates told the National Museum of American History that it was the display that really got him excited about the project: "Up to then, all we had was four lines by 20 characters. I didn't think using 4 by 20 you could do much that was interesting. But, when [my friend Kazuhiko Nishi] said we could go 8 by 40, then I got to be pretty fascinated with the idea of a portable machine."
Unlike most of today's LCDs, you'll find no backlight here. On the bright side, one can easily read the screen in full sunlight.

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