BESK. Binary Electronic Sequence Calculator. Sweden's first electronic computer. It was developed by the Swedish board for computing machinery and for a short time ti was the fastest computer in the world.
TI Cal-Tech: World's First Pocket Electronic Calculator
Mechanical calculator - Wikipedia
Jerry Merryman, the man who helped invent the hand-held calculator, has died | CNN Business
The Calculators Brief History: When was the calculator invented
The History Of The Calculator: When was the Calculator First Invented?
Design history of the pocket calculator
HNF - Desk and pocket calculators – Electronic mass products
First handheld calculator headlines auction of mathematical treasures
11 Calculators That Show How Far Computing Has Come in the Past 2,000 Years
Pascal's calculator - Wikipedia
World's first handheld calculator up for grabs - BBC Newsround
What is the first mechanical calculator produced commercially? - Quora
The History Of The Calculator
Evolution of the Calculator 2,000 BCE - 2020 | History of Calculator, Documentary video - YouTube
The History Of The Calculator: When was the Calculator First Invented?
A Brief History of Calculators in the Classroom
National Museum of American History
Electronic Calculators—Handheld | National Museum of American History
got my first graphics calculator what should i do first, or what apps are like made for this one : r/calculators
World's first pocket calculator goes up for auction: 'Exceptionally rare' 17th century machine made of wood could fetch £100,000 | Daily Mail Online
