In 1972, Hewlett-Packard introduced the HP-35, a device that would forever change the landscape of scientific calculations. As the world's first scientific pocket calculator, the HP-35 brought complex mathematical functions into the hands of scientists, engineers, and students, replacing the slide rules that had been the standard for decades. This article delves into the revolutionary impact of the HP-35, examining how it transformed the way calculations were
performed and its lasting influence on technology.
A New Era of Calculations
Before the HP-35, performing scientific calculations required the use of slide rules, which were cumbersome and limited in functionality. The HP-35, however, was a game-changer. It was the first pocket calculator capable of performing trigonometric and exponential functions, making it an indispensable tool for professionals in scientific fields. The introduction of the HP-35 meant that complex calculations could be performed quickly and accurately, without the need for manual computation.
The HP-35's use of reverse Polish notation (RPN) was another innovative feature that set it apart from other calculators. RPN allowed users to enter calculations in a more efficient manner, reducing the number of keystrokes required and minimizing errors. This feature, combined with its portability and advanced functions, made the HP-35 a must-have device for anyone involved in scientific work.
The Decline of the Slide Rule
The HP-35's introduction marked the beginning of the end for the slide rule. As more people adopted the HP-35, the demand for slide rules rapidly declined. Colleges and universities began to phase out slide rule classes, recognizing the superior capabilities of electronic calculators. The HP-35's ability to perform a wide range of functions with ease made it the preferred choice for students and professionals alike.
The calculator's success was evident in its sales figures. In its first year alone, Hewlett-Packard sold 100,000 units, and by the time it was discontinued in 1975, over 300,000 HP-35 calculators had been sold. This widespread adoption underscored the device's impact on the scientific community and its role in shaping the future of technology.
Lasting Influence on Technology
The HP-35's influence extended beyond its immediate impact on scientific calculations. It paved the way for the development of more advanced calculators and computing devices. The success of the HP-35 demonstrated the potential of portable electronic devices, inspiring further innovation in the field of personal computing.
Hewlett-Packard continued to build on the success of the HP-35, releasing subsequent models with enhanced features and capabilities. The HP-35's legacy is evident in the calculators and computing devices we use today, which owe much of their functionality and design to this pioneering device. The HP-35 not only transformed the way calculations were performed but also set the stage for the technological advancements that followed.
