Heinz Zemanek had come to an agreement with Konrad Zuse, whose company Zuse KG would finance the work of Rudolf Bodo, who helped build the Mailüfterl, also that all circuit diagrams of the Z22 were supplied to Bodo and Zemanek, and that after the Mailüfterl project Bodo should work for the Zuse KG to help build the transistorized Z23.
The nickname was coined by Zemanek: Even if it cannot match the rapid calculation speed of American models called "Whirlwind" or "Typhoon", it will be enough for a "Wiener Mailüfterl" (Viennese May breeze).
The computer has 3,000 transistors, 5,000 diodes,[2] 1,000 assembly platelets, 100,000 solder joints, 15,000 resistors, 5,000 capacitors and about 20,000 metres (66,000 ft) of wire.
The machine was comparable in calculating power to what were then considered small vacuum-tube computers.
Zemanek later said about his project that it was a "semi-illegal" undertaking of an assistant professor, which he and a group of students realized without official authorization, and hence without financial support, from the university.