EVOLUTION OF COMPUTING

Evolution of Computing – The punch card machine read holes pierced in paper. The Turing machine, more of a concept than a machine, is the logical basis for modern computing. The ENIAC could be reprogrammed, its panels were switched around to perform functions. The teletype was the precursor to the modem as we know it today. Mainframe computers referred to the large cabinets that housed the units used by companies and universities. Vacuum tubes were replaced by transistors, eventually leading to microprocessors. The Arpanet--precursor to the internet-- began with 4 connected computers, transmitting digital packets. The Altair 8800 microcomputer caused a sensation when it appeared on the cover of Popular Electronics. The following year Apple I came onto the hobbyist market. It worked using a keyboard and TV. The Apple Lisa, with an early mouse and GUI (graphical user interface), was too expensive and didn’t sell well. The IBM PC, Commodore 64 and Macintosh followed each other in rapid succession. Windows 1.0 and the Mac OS appeared about the same time. Photoshop brought images the same way HTML brought text to web pages. Did you know that there were only 26 web sites in 1992? Laptops, tablets, smart phones and e-readers are making computers smaller and smaller. I wonder, what will be next in the evolution of computing? 

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