The IBM Simon Personal Communicator (simply known as IBM Simon) is a handheld, touchscreen PDA designed by International Business Machines (IBM), and manufactured by Mitsubishi Electric. Although the term “smartphone” was not coined until 1995, because of Simon’s features and capabilities, it has been retrospectively referred to as the first true smartphone.
invented by Ernst Ruska
An electron microscope is a microscope that uses a beam of accelerated…
invented by Naum Gurvich William Kouwenhoven
Defibrillation is a treatment for life-threatening cardiac dysrhythmias,…
invented by Alexander M. Nicholson
A crystal oscillator is an electronic oscillator circuit that uses the…
invented by Friedrich Bergius
The Bergius process is a method of production of liquid hydrocarbons for use as…
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