Virtual Museum of Calculators

Mindenfajta számológép, logarléc és számolási segédeszköz virtuális kiállítóterme

HP Virtual Museum: 9100A desktop calculator, 1968

Virtual Museum of Calculators

Slide Rules & Calculators — The National Museum of Computing

Electronic Calculators—Handheld

Virtual Museum of Calculators

Virtual Museum of Calculators

Electronic Calculators—Handheld

HP Virtual Museum: 9100A desktop calculator, 1968

Electronic Calculators—Handheld

The Old Calculator Web Museum - Make

Mathematical Treasure: Hewlett-Packard HP-28S Handheld Electronic Calculator from the AMS Centennial Meeting

Virtual Museum of Calculators

Slide Rules & Calculators — The National Museum of Computing