Olivetti S.p.A. is a company of the Telecom Italia group that operates in the information technology sector. In the past it was one of the most important companies in the world in the field of typewriters, calculators and electronics. Among its most significant records are the Divisumma 14, the Elea 9003 and the Program 101: the Divisumma 14 was the first electromechanical calculator in the world capable of carrying out all four operations and printing the result, the Elea is one of the first fully transistor computers. Program 101 was the first personal computer from which current personal computers (PCs) are derived.