Inside a Classic: The TRS-80 Model 100

Instant-on, with a comfortable keyboard and 20 hours of battery life: Little wonder this Radio Shack model is one of the most popular portables of all time. We offer a look at the guts of this featherweight champion.

Benj Edwards, PC World

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To the upper right, you'll notice the 30-pin umbilical cord that keeps the Model 100's display alive with power and fresh display data. You can see the 3.6v rechargeable memory battery I mentioned earlier next to the display's cable.

The black connector for a bar code reader made the 100 especially useful for portable data collection. Next to that, you'll find switches to change internal modem settings.