File:ELWAT.jpg

A Polish analogue computer “ELWAT” designed at the Wojskowa Akademia Techniczna (Military University of Technology) in Warsaw. Manufactured by Elwro works between 1967-69. In the picture (from the left): digital voltometer, teleprinter, osciloscope, computers stands.

Polski komputer analogowy ELWAT skonstruowany w Wojskowej Akademii Technicznej w Warszawie. Produkowany seryjnie przez zakłady Elwro w latach 1967-69.

Zdjęcie z "1000 słów o komputerach i informatyce" z 1976 r.

This photograph is in the public domain because according to the Art. 3 of copyright law of March 29, 1926 of the Republic of Poland and Art. 2 of copyright law of July 10, 1952 of the People's Republic of Poland, all photographs by Polish photographers (or published for the first time in Poland or simultaneously in Poland and abroad) published without a clear copyright notice before the law was changed on May 23, 1994 are assumed to be in the public domain in Poland. This work is in the public domain in the United States because it meets three requirements: it was first published outside the United States (and not published in the U.S. within 30 days), it was first published before 1 March 1989 without copyright notice or before 1964 without copyright renewal or before the source country established copyright relations with the United States, it was in the public domain in its home country (Poland) on the URAA date (1 January 1996). To uploader: Please provide where and when the image was first published.