Magic-Brain Calculator - Calculator - Computing History

The MagicBrain Calculator was manufactured in 1955 by the Chadwick Company, this early calculator was operated using a stylus, and could perform addition, subtraction and multiplication calculation

Mathematical Treasure: Wang Loci-2 Programmable Calculator

Magic brain' calculator. C.1955 Science Museum Group Collection

Pocket Calculating Devices

John Wolff's Web Museum - Slide Adding Machines

Standards, Free Full-Text

Schibsted:: Machines like us - a brief history of artificial intelligence #futurereport

Calculator - Wikipedia

Slide calculator - Wikipedia

Be a Human Calculator: Mere Observation - No Magic: Sarswat, Rajesh: 9789352066070: : Books

Calculator - New World Encyclopedia

Vintage 1960s MAGIC BRAIN Pocket Mechanical Addiator Calculator Unpunched NOS

Magic Brain Calculator with instructions. 1960's.

Our Brains are Like Software, Not Hardware

Vintage Chadwick Magic Brain Calculator on A La Modern