- Types of computers - CDC 6600 - 1950s-60s - Move from mesa to planar transistors - ![[Pasted image 20201130172817.png]] - Sold 200 pieces for $9 million each - Cray era- 1970s to 80s - Cray Jaguar & Titan - IBM Squoia & Summit - Fujitsu's Fugaku beats IBM Summit by ~2.8x at 415 petaflops Hardware Costs - $ per GFLOPS - 1960 - $160 billion - 2000 - $964 - 2020 - $0.04 For 4 orders of magnitudes of cost drop change (10^4) it first took 40 years to 2000, then took 20 years.. Measure of Computational Performance --> floating point operations per second (FLOPS) ![[Pasted image 20201201125747.png]]