Olivetti Summa Quanta 20

 Home > Browse Our Collection > Calculators > Electro Mechanical > Olivetti Summa Quanta 20

The Olivetti company was founded by electrical engineer Camillo Olivetti (1868-1943) in 1908. The 40-year-old Olivetti established a factory in his home town of Ivrea in northern Italy, and initially produced a range of typewriters to his own design. As the business expanded in the 1920s and 30s the company established branches in Spain and in several South American countries. A very successful range of mechanical printing calculators was added during the reconstruction period following the 1939-45 war. The company expanded into the American market with the purchase of the Underwood typewriter company in 1959.

Olivetti moved successfully into electronics with the production of a mainframe digital computer (the ELEA 9003) in 1959, and a programmable desktop calculator/computer (the Programma 101) in 1964. The company had several changes of ownership and direction during the 1970s, 80s, and 90s, with new interests in personal computers, office equipment, and telecommunications. The company became part of Telecom Italia in 2003, and celebrated its 100th birthday in 2008. Electronic calculators are still made and sold under the Olivetti name.

Olivetti Summa QUANTA 20, S/N 5004303
Electric, 10/11 digits
Dimensions: 190W x 285D x 130H
Weight: 4.59kg

Kindly donated by Dave Joyner on behalf of his father Joe Joyner.

Manufacturer: Olivetti
Date: 1972

Other Systems Related To Olivetti Summa Quanta 20:

Item Manufacturer Date
Olivetti Elettrosumma 22 Olivetti 1958
Olivetti Summa Prima 20 (pre-decimal) Olivetti 1961
Olivetti Summa Prima 20 Olivetti 1966
Olivetti Logos 9 Calculator Olivetti 1980

This exhibit has a reference ID of CH5473. Please quote this reference ID in any communication with the Centre for Computing History.


Olivetti Summa Quanta 20

Click on the Image(s) For Detail

Related Video

Alan Sercombe: Interview, 23 July 2014 50623
Alan Sercombe: Interview, 23 July 2014 50623

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