What is "weizac"

The WEIZAC (Weizmann Automatic Computer) was the first computer in Israel, and one of the first large-scale, stored-program, electronic computers in the world.

It was built at the Weizmann Institute during 1954-1955, based on the Institute for Advanced Study (IAS) architecture developed by John von Neumann. The WEIZAC was operational until December 29, 1963, and was superseded by a Control-Data 1604A computer. The 1604A was later superseded by the locally designed GOLEM.

As with all computers of its era, it was a one of a kind machine that could not exchange programs with other computers (even other IAS machines).