How Far Has Technology Comete Changed?

The first computer paul used didn't even look like a computer. Programmable s made by hp were sort of the first personal computers. And ye, you could write programs for these calculators. The programs were usually formulas, like converting celsius to fahrenheit,. But they could have up to a hundred steps and paul was creative. He started writing programes for that and publishing magazine articles. I had one that explained how to calculate sunrise and sunset times., another one that did a model of the solar system, and a third one where you would draw on a piece of grap paper. You'd draw an earth and a moon, and you'd put in numerical values in the