File:Abacus 6.pngEnglish The Abacus-This was one of the earliest manual computer in the history of computer evolution. Add RR Hebrew חשבונייה, כלי חישוב פשוט, שנמצא בשימוש
File:Abacus diagram for affine S 4.pngholder of this work, hereby publish it under the following license: English Abacus diagram of an affine permutation URL: https://commons.wikimedia.org/wiki/user:Joel_B
File:Using-an-Abacus-02.png0 Creative Commons Attribution-Share Alike 4.0 truetrue English Generic abacus, the birth of positional number notation. author name string: Jccsvq URL:
File:History of math3.jpgsee respective pages. 205 218 190 178 400 400 A roman abacus from File:Portal Mathematiklinks.png 205 104 190 109 400 400 A 1652 Pascaline calculator,
File:Abacus addition.pngDescriptionAbacus addition.png Norsk bokmål: Denne fila viser korleis ein bruker ei kinesisk kuleramme for å leggja saman to tal, 32 og 9 i dette dømet
