Helmut Schreyer

This plan was rejected by the Nazi German military, because the war was expected to only last a couple of years and building the electronic computer Schreyer envisaged, would have taken much longer.

Schreyer's prototype of this accelerometer was destroyed, when he fled to Vienna on a train, during the last days of World War II.

[citation needed] Konrad Zuse invented and built the so called Z-series of personal computers between 1936 and 1945.

[3] Schreyer had theorized on the use of electrical circuit technology to implement computers, but while he first considered it practically infeasible, he subsequently could not get the necessary funding for his theory.

Up to 1942 Schreyer himself built an experimental model of a computer using 100 vacuum tubes,[4] which was lost at the end of World War II.

[7] While teaching at the Pontifical Catholic University of Rio de Janeiro (PUC-Rio) Schreyer alongside other faculty members of staff, supervised students for an end-of-term electronics project.