History Of Computers The computer as we know it today had its beginning with a 19th-century English mathematics professor name Charles Babbage. ... Other developments continued until in 1946 the first general-purpose digital computer , the Electronic Numerical Integrator and Computer (ENIAC) was built. First Computers The first substantial computer was the giant ENIAC machine by John W. Mauchly and J. Presper Eckert at the University of Pennsylvania. ENIAC (Electrical Numerical Integrator and Calculator) used a word of 10 decimal digits instead of binary ones like previous automated calculators/computers. ENIAC was also the first machine to use more than 2,000 vacuum tubes, using nearly 18,000 vacuum tubes. Storage of all those vacuum tubes and the machinery required to keep the cool took up over 167 square meters (1800 square feet) of floor space. Nonetheless, it had punched-card input and output and arithmetically had 1 multiplier, 1 divider-...
The Pleiades aka Nasa's Supercomputer What is the Pleiades? The Pleiades, one of the world's most powerful supercomputers, represents NASA's state-of-the-art technology for meeting the agency's supercomputing requirements, enabling NASA scientists and engineers to conduct modeling and simulation for NASA projects. This distributed-memory SGI/HPE ICE cluster is connected with InfiniBand in a dual-plane hypercube technology. The system contains the following types of Intel Xeon processors: E5-2680v4 (Broadwell), E5-2680v3 (Haswell), E5-2680v2 (Ivy Bridge), and E5-2670 (Sandy Bridge). The Pleiades is named after the astronomical open star cluster of the same name. System Architecture Manufacturer: SGI/HPE 158 racks (11,207 nodes) 7.09 Pflop/s peak cluster 5.95 Pflop/s LINPACK rating 175 Tflop/s HPCG rating Total CPU cores: 241,324 Total memory: 927 TB 3 racks (83 nodes total) enhanced with NVIDIA graphics processing units (GPUs) 614,400 CUDA cores 0....