29
/it/
it
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
Creare
Public Timelines
Biblioteca
FAQ
For education
Cabinet
For educational institutions
For teachers
For students/pupils
Scaricare
Export
Creare una copia
Integrare nel sito Web
Modificare
Visualizzazioni 508
0
0
Calculator
è stata creata
Floofypanda
⟶ è stato aggiornato 15 set 2017 ⟶
List of edits
Linee del tempo dal
Floofypanda
:
25 ott 2017
0
0
379
Edgar Allan Poe
Edgar for English
Commenti
Eventi
First Mechanical Calculator
Start period of the development of commercially successful mechanical calculators 1872
The first electronic desktop calculators 1961
Start if development of handheld calculators 1965
First battery powered, handheld, electronic calculator 1969
First calculator to use a microprocesser 1971
First solar powered and first credit card sized calculators 1978
Periodi
Steady development of mechanical calculators -size reduction, electronic motor drive, and other added features 1900-1975