Public Timelines

For educational institutions For teachers For students Cabinet

For educational institutions For teachers For students Open cabinet

FAQ Obtenir le Premium

Create a timeline

Public timelines

About & Feedback Un accord Confidentialité FAQ

Cabinet Get premium

Donate

1 janv. 1200 - Suan-Pan Abacus

Description:

A Chinese abacus[1] used for performing basic number calculations.

[1] https://www.ee.ryerson.ca/~elf/abacus/history.html

Ajouté au bande de temps:

history of computing hardware

2 mars 2021

0

0

261

Date:

1 janv. 1200

Maintenaint

~ Il y a 826 ans

Les images:

About & Feedback Un accord Confidentialité FAQ

Cabinet Get premium

Donate

The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.

Secured with SSL