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CRT - Cathode Ray Tubes
While cathode ray tubes were invented in the late 1800's, John B. Johnson and Harry Weiner Weinhart (in 1922) were the first to develop CRTs using a hot cathode. Different from the code-cathode used prior which required a phosphor coated screen. This allowed televisions to be sold as commercial products. -
Type 011 Electric Key Punch
The type 011 electric key punch was designed by Herman Hollerith, which worked similar to a pantograph (an instrument used to draw an identical image of a larger or smaller state). This was linked to a guide pointer that would allow the operator to place a punch card in the specific spot to ensure the proper punch. This significantly increased the speed in which workers could input data and would later go on to inspire the number pad and keyboards we use today. -
Horizontal Card Sorter
The horizontal card sorter, again designed by Herman Hollerith and the IBM corporation, was used to sort punch cards by using a small metal point to brush over the cards. This would direct the card (based on which holes were punched) into the corresponding metal chute. This allowed for cards to be sorted automatically meaning data could be calculated at a faster rate. In today's world this design is incorporated into conveyor systems in most factories. -
Two Acess Joystick
At the Naval Research Laboratory in 1926 Carlos B. Mirick filed a patent for the first joystick. He had designed it as a control mechanism for military aircrafts and it went on to be used primarily in remote controlled aircrafts. however, its design would later be used to create controllers for game consoles and most aviation. -
Electronic Television
In 1927 Philo Farnsworth filed a patent for his electronic television system after successfully making his first transmission, aside from other designs Farnsworth's was entirely electric opposed to older models which used mechanical systems. Which inspired more electric innovations to come to be.