Stibitz joined Bell telephone wherever he worked within the labs as a maths adviser. Stibitz's interest in computers came from 1937 once he was asked to review ways that to boost the magnetically/mechanical telephone relays of the time. In Nov of 1937 he created the primary two-digit binary adder. successive year he developed a posh calculator. many computers were created victimization the fundamental principles he introduced. In total he received thirty four patents.