FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -In 1977, US$7.9 million was spent, which would be $35.3 million in 2021. The CRAY-1’s design has changed somewhat from the 7600 due to user experience with first-generation vector processors. Processing short vectors are where the CRAY-1 excels.

Detailed explanation-2: -Densely packed integrated circuits and a novel cooling system reflected Cray’s attention to “packaging and plumbing.” The Cray-1 was 10 times faster than competing machines. But speed came at a cost. It sold for up to $10M and drew 115 kW of power, enough to run about 10 homes.

Detailed explanation-3: -The $105 million HPE Cray EX supercomputer, called Crossroads, will replace Cray’s Trinity system and will be used by three NNSA national labs, Lawrence Livermore, Los Alamos and Sandia, during 2022 – 2026.

Detailed explanation-4: -Speed. 17.59 petaFLOPS (LINPACK) 27 petaFLOPS theoretical peak. Cost. US$97 million (equivalent to $114 million in 2021)

Detailed explanation-5: -Announced in 1975, the first Cray-1 system was installed at Los Alamos National Laboratory in 1976. Eventually, 80 Cray-1s were sold, making it one of the most successful supercomputers in history.