Historical analysis from 2020 explains how computers emerged-and then disappeared.
The following document arrived at the offices of Technology Review in a time capsule dated 2020. It purports to be a history of computers written by computer scientist-turned-historian John Seely Brown. In the late 20th century, Dr. Brown served as director of Xerox Corporation's Palo Alto Research Center.
The history of computers is actually quite simple. In the beginning there were no computers. Then there were computers. And then there were none again. Between the second and the third stage, they simply disappeared. They didn't go away completely. First they faded into the background. Then they actually merged with the background.
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This document is part of the “How-To Guide for Most Common Measurements” centralized resource portal. This tutorial provides a detailed guide for measurement and device considerations to take temperature measurements using thermocouples. Get an introduction to thermocouples, which are inexpensive sensing devices widely used with PC-based data acquisition systems. Also review some specific thermocouple examples and learn how thermocouples work and ways to integrate them into a data acquisition measurement system.
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