TI Cal-Tech: World's First Pocket Electronic Calculator
Remember Your First Pocket Calculator?
Amazon.com : Texas Instruments TI-1025 Electronic Vintage Calculator : Office Products
File:Vintage Sharp Electronic Pocket Calculator, Model EL-805, COS-LCD, First Use Of The COS-LCD, Flip-Up Display Cover-Shield, Made In Japan, Circa 1973 (15271504422).jpg - Wikimedia Commons
HP 35: The First Handheld Scientific Calculator - HP History
TI-59 / TI-58 - Wikipedia
Jerry Merryman, Co-Inventor of the Pocket Calculator, Dies at 86 - The New York Times
The First Electronic Calculator | EAGLE | Blog
The early history of HP calculators | HPE
File:Vintage Teal Photon Solar Powered Electronic Pocket Calculator, LCD With Yellow Filter, One Of The First Solar Powered Calculators, Made In Japan, Circa 1978 (15083726059).jpg - Wikimedia Commons
First American Pocket Calculator - LimeGong
Timeline
HP 35 - First Handheld Scientific Calculator - HP History
HP-80 History, Design and Interesting Facts
Calculator - Wikipedia
Jerry Merryman, the man who helped invent the hand-held calculator, has died | CNN Business
The History Of The Calculator: When was the Calculator First Invented?
The History Of The Calculator: When was the Calculator First Invented?
First handheld calculator headlines auction of mathematical treasures
Calculator - Wikipedia
