# Inventions

## Mechanical Calculators

The first Mechanical Calculator was invented in 1642 by Blaise Pascal after 50 prototypes and three years of efforts.\” /> <script type=\"application/ld+json\" class=\"yoast-schema-graph

## The Rise and Fall of 3D TVs

3D TVs were once heralded as the next big thing in televisions but failed after just a few years. What happened? Let's break it all down.\” /> <script type=\"application/ld+json\" class=\"yoast-schema-graph

## Cash Register: The Complete History

The cash register was invented in 1879 by James Ritty, a saloon owner who was tired of having his profits stolen from bartenders.\” /> <script type=\"application/ld+json\" class=\"yoast-schema-graph

## Pascaline Calculator Explained — Everything You Need To Know

Blaise Pascal invented the Pascaline calculator to help his father complete tax computations more efficiently. Find. outmore!\” /> <script type=\"application/ld+json\" class=\"yoast-schema-graph

## Hello Friend! Here‘s Everything You Could Want to Know About the History and Impact of Compact Discs

The first workable digital compact disc device, the precursor on now-ubiquitous CD/DVDs, was invented in the late 1960s by the American…\” /> <script type=\"application/ld+json\" class=\"yoast-schema-graph

## Hello there! Let me tell you all about the fascinating history of the Curta calculator.

The Curta Calculator is a mechanical calculator invented by Curt Herzstark in the 1930s. It is one of the first portable calculators.\” /> <script type=\"application/ld+json\" class=\"yoast-schema-graph

## The Complete History of the First ATM/Cash Machine

The first cash machine paved the way for the card and four-digit personal identification number that we use today with ATM/Cash Machine.\” /> <script type=\"application/ld+json\" class=\"yoast-schema-graph

## Unraveling the Complex History Behind the World‘s First Microphone

The answer to who invented the world’s first microphone is complicated. Three inventors fought it out, even going to the Supreme Court!\” /> <script type=\"application/ld+json\" class=\"yoast-schema-graph

## Abacus Explained — Everything You Need To Know

The abacus has been used for centuries in China and has a long history of use in Ancient Greece, Rome, Russia Japan, and Babylon.\” /> <script type=\"application/ld+json\" class=\"yoast-schema-graph

## Abacus Explained — Everything You Need To Know

The abacus has been used for centuries in China and has a long history of use in Ancient Greece, Rome, Russia Japan, and Babylon.\” /> <script type=\"application/ld+json\" class=\"yoast-schema-graph