Olivetti Elettrosumma 22

 Home > Browse Our Collection > Calculators > Electro Mechanical > Olivetti Elettrosumma 22
 

The Elettrosumma 22 is an electric, 10-key add-lister calculating machine which was introduced by Olivetti in 1958. Add-lister machines were mainly used for addition and subtraction, but could be used for multiplication with successive addition. The Electrosumma 22 ran at a speed of 220 cycles per minute which made it the fastest add lister machine at the time. It cost £89 15s £ Sterling when released.

This example in our collection is the pre-decimal sterling version.

Manufacturer: Olivetti
Date: 1958

Other Systems Related To Olivetti Elettrosumma 22:

Item Manufacturer Date
Olivetti Summa Prima 20 (pre-decimal) Olivetti 1961
Olivetti Summa Prima 20 Olivetti 1966
Olivetti Summa Quanta 20 Olivetti 1972
Olivetti Logos 9 Calculator Olivetti 1980

This exhibit has a reference ID of CH32643. Please quote this reference ID in any communication with the Centre for Computing History.

  

Olivetti Elettrosumma 22


Click on the Image(s) For Detail

Help support the museum by buying from the museum shop

View all items

Founding Sponsors
redgate Google ARM Real VNC Microsoft Research
Heritage Lottery Funded
Heritage Lottery Fund
Accredited Museum