WEIZAC

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.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.
Section of WEIZAC on display (2007).
WEIZAC construction.
WEIZAC in use.
Israelstored-programWeizmann InstituteInstitute for Advanced StudyJohn von NeumannIAS machinesChaim L. PekerisIAS machineChaim WeizmannLaplaceAlbert EinsteinGerald EstrinThelmaHolocaustmagnetic tapemagnetic drummagnetic-core memoryearthquakesatomic spectroscopyX-ray crystallographyrandom walknumerical analysisamphidromic pointSouth AtlanticBrookhaven National LaboratoryIsrael's computer and technology industriesCDC 1604AILLIAC IIAviezri FraenkelMainframesSILLIACBESM-6PS-2000ElbrusIAS familyILLIACAVIDACIBM 701JOHNNIACORACLEORDVACMANIAC IMANIAC IIMISTICMUSASINO-1EDB-2/3CycloneUniversity of IllinoisILLIAC IILLIAC IIIILLIAC IVHarvard UniversityHarvard Mark IHarvard Mark IIHarvard Mark IIIHarvard Mark IV305 RAMACAN/FSQ-7AN/FSQ-8University of PennsylvaniaUNIVAC IRemingtonSperry RandUNIVAC IIComputers built 1955 through 1978RaytheonRAYDACColossus computerTransistor computerVacuum-tube computerHistory of computing hardwareHistory of computing hardware (1960s–present)List of pioneers in computer science