The First Electronic Calculator: A Revolutionary Invention

How much did the first electronic calculator weigh
The first electronic calculator was invented in 1961 and weighed 55 pounds (25 kg).


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1961 marked a significant moment in technological history. The first electronic calculator was born during this year. This invention, groundbreaking in nature, was far from the sleek devices we’re accustomed to today. Weighing in at a whopping 55 pounds, it was a behemoth of machinery.

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  • The first electronic calculator was invented in 1961 and weighed 55 pounds (25 kg).
  • It was called ANITA (A New Inspiration To Arithmetic Accounting) and was developed by a British company.
  • It used vacuum tubes and cold-cathode tubes to perform arithmetic operations on numbers up to 12 digits.
  • It had a keyboard with buttons for digits and functions, and a display with nixie tubes.
  • It was a huge success and sold thousands of units around the world.
  • It paved the way for the development of smaller and faster calculators using transistors and microprocessors.

Contrasting Sizes: The Heft of the First Electronic Calculator

first electronic calculator
first electronic calculator

Imagine hauling a medium-sized dog or a bag of concrete. That’s the weight of the first electronic calculator. 55 pounds might seem hefty for a calculator, but back then, it was a marvel. Its weight showcased the complex machinery that lay within.

Function Over Form: Inside the First Electronic Calculator

Beyond its weight, the calculator had numerous components. Vacuum tubes, transistors, and rudimentary circuits worked in harmony. Together, they performed mathematical functions with electronic efficiency. Though bulky, it laid the foundation for future advancements in computation.

The Evolution Continues: From the First to Modern Calculators

From that initial design, calculators underwent rapid evolution. The 1970s saw pocket-sized versions becoming popular. Today, calculators are even embedded into our smartphones. And yet, it all started with that 55-pound pioneer, a testament to human innovation.

Paving the Way: Impact of the First Electronic Calculator

Though bulky by today’s standards, the first calculator was revolutionary. It heralded a new era of electronic computation. Businesses, scientists, and educators all benefited. It set the stage for the digital age. Every time we tap on our phone’s calculator, we owe a nod to this 1961 invention.