WEIZAC

WEIZAC was widely used by Israeli scientists and researchers and helped with the advancement of science and technology in the young nation.

Pekeris wanted it as means to solve Laplace’s tidal equations for the Earth's oceans, and also for the benefit of the entire scientific community of Israel, including the Defense Ministry.

[citation needed] In July 1947, an advisory committee for the Applied Mathematics Department discussed the plan to build the computer.

After arriving, Estrin's impression was that besides Pekeris, other Israeli scientists thought it is ridiculous to build a computer in Israel.

The WEIZAC project also provided an opportunity for mathematicians and engineers to move to Israel without sacrificing their professional careers.

It also numerically calculated the eigenvalues of a two-electron atom quantum system based on programming by Yigal Accad who put Pekeris' development of the relevant equations into machine code.

At the same time the institute's staff began constructing the locally designed GOLEM – based on the ILLIAC II architecture, but with several improvements which resulted in significantly-reduced volume and power consumption.