How Olivetti Designed the First Personal Computer in History, the Programma 101 (1965)

If you were to come across an Olivet­ti Pro­gram­ma 101, you prob­a­bly would­n’t rec­og­nize it as a com­put­er. With its 36 keys and its paper-strip print­er, it might strike you as some kind of over­sized adding machine, albeit an unusu­al­ly hand­some one. But then, you’d expect that qual­i­ty from Olivet­ti, a com­pa­ny best remem­bered for its enor­mous­ly suc­cess­ful type­writ­ers that now occu­py prime space in muse­ums of twen­ti­eth-cen­tu­ry design. Among its less­er-known prod­ucts, at least out­side its native Italy, are its com­put­ers, a line that began with main­frames in the mid-nine­teen-fifties and end­ed with IBM PC clones in the nineties, reach­ing the height of its inno­va­tion with the Pro­gram­ma 101 in 1965.

The Pro­gram­ma 101 is also known as the P101 or the Per­ot­ti­na, a name derived from that of its inven­tor, engi­neer Pier Gior­gio Per­ot­to. “I dreamed of a friend­ly machine to which you could del­e­gate all those menial tasks which are prone to errors,” he lat­er said, “a machine that could qui­et­ly learn and per­form tasks, that could store sim­ple data and instruc­tions, that could be used by any­one, that would be inex­pen­sive and the size of oth­er office prod­ucts which peo­ple used.”

To real­ize that vision required not just a tech­ni­cal effort but also an aes­thet­ic one, which fell to the young archi­tect and indus­tri­al design­er Mario Belli­ni, who had fol­lowed his col­league (and lat­er Mem­phis Group founder) Ettore Sottsass into con­sult­ing work for Olivet­ti.

All this work took place at a time of cri­sis for the com­pa­ny. Fol­low­ing the death of its head Adri­ano Olivet­ti in 1960, writes Opin­ion­at­ed Design­er, it “got into severe finan­cial dif­fi­cul­ties after buy­ing the giant US Under­wood com­pa­ny, and the elec­tron­ics divi­sion was sold off to Gen­er­al Elec­tric ear­ly in 1965.” Olivet­ti’s son Rober­to had already “giv­en the go-ahead in 1962 for the devel­op­ment of a small ‘desk-top’ com­put­er.” In order “to avoid their project being swal­lowed up by GE, Perotto’s team changed some of the spec­i­fi­ca­tions of the 101 to make it appear to be a ‘cal­cu­la­tor’ rather than a ‘com­put­er’ which meant the project could stay with Olivet­ti.” Yet on a tech­ni­cal lev­el, the Per­ot­ti­na remained very much a com­put­er indeed.

In addi­tion to sub­trac­tion, mul­ti­pli­ca­tion, and divi­sion, “it could also per­form log­i­cal oper­a­tions, con­di­tion­al and uncon­di­tion­al jumps, and print the data stored in a reg­is­ter, all through a cus­tom-made alphanu­mer­ic pro­gram­ming lan­guage,” writes Ric­car­do Bian­chi­ni at Inex­hib­it. In the video above, enthu­si­ast Wladimir Zaniews­ki demon­strates its capa­bil­i­ties with a sim­ple alphanu­mer­ic lunar-lan­der game: a his­tor­i­cal­ly apt project, since NASA bought ten of them for use in plan­ning the Apol­lo 11 moon land­ing. Yet even more impor­tant was the device’s com­par­a­tive­ly down-to-earth achieve­ment of being, in Bian­chini’s words, “an unin­tim­i­dat­ing object every­one could use, even at home. In that sense, there is no doubt that the Olivet­ti Pro­gram­ma 101 tru­ly is the first per­son­al com­put­er in his­to­ry.”

Relat­ed con­tent:

Watch the World’s Old­est Work­ing Dig­i­tal Com­put­er — the 1951 Har­well Deka­tron — Get Fired Up Again

Dis­cov­ered: The User Man­u­al for the Old­est Sur­viv­ing Com­put­er in the World

How British Code­break­ers Built the First Elec­tron­ic Com­put­er

When Kraftwerk Issued Their Own Pock­et Cal­cu­la­tor Syn­the­siz­er — to Play Their Song “Pock­et Cal­cu­la­tor” (1981)

How France Invent­ed a Pop­u­lar, Prof­itable Inter­net of Its Own in the 80s: The Rise and Fall of Mini­tel

Based in Seoul, Col­in Marshall writes and broad­casts on cities, lan­guage, and cul­ture. His projects include the Sub­stack newslet­ter Books on Cities and the book The State­less City: a Walk through 21st-Cen­tu­ry Los Ange­les. Fol­low him on Twit­ter at @colinmarshall or on Face­book.


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