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David Patterson回顾RISC的诞生往事
半导体行业观察· 2025-12-25 01:32
Core Insights - David Patterson delivered a highly praised keynote speech at the RISC-V summit, reflecting on the birth of Reduced Instruction Set Computing (RISC) at the University of California, Berkeley in 1981 [1][3] - The computing landscape in 1981 was dominated by mainframes and minicomputers, with IBM as the industry leader, and the VAX minicomputer representing the peak of technology at that time [1][2] - The prevailing belief was that Complex Instruction Set Computing (CISC) could bridge the "semantic gap" between high-level languages and hardware, but this was later proven to be inefficient [2][3] Summary by Sections Historical Context - In 1981, the computing environment was characterized by large machines, with the VAX being a 32-bit system running at 5 MHz and equipped with 2 KB cache [1] - The era also saw significant cultural events, including Ronald Reagan's presidency and the rise of disco music [1] RISC Principles - The RISC principles emerged from the realization that simpler instruction sets could lead to better performance, prioritizing fast clock cycles and easy decoding over the complexity of instruction sets [2][3] - Patterson compared CISC to an overly decorated 1950s Cadillac and RISC to a sleek, agile sports car, emphasizing the efficiency of simplicity [2] RISC-I Development - Patterson and student David Ditzel published a paper in 1980 that sparked widespread attention and debate regarding RISC versus CISC [3] - The RISC-I design was completed in under two years by a small group of students, demonstrating performance that was approximately twice as fast as the VAX, validating the RISC concept [3] Legacy and Impact - After 45 years, the simplicity and elegance of RISC have powered billions of devices globally and continue to thrive within the open RISC-V ecosystem [4]
Decoding VinFast's Inclusive Pricing Strategy
Prnewswire· 2025-06-23 14:01
Core Insights - VinFast aims to revolutionize the electric vehicle (EV) market by ensuring accessibility through "inclusive pricing," integrating premium features into standard costs to avoid leaving anyone behind in the electrification of transportation [1][7] - The company recognizes that the current EV revolution is akin to the personal computer revolution, where vehicles are becoming integrated mobile computers that enhance the driving experience [2][3] - VinFast's strategy focuses on three core pillars for entering the U.S. market: high-quality products, inclusive pricing, and outstanding aftersales policy [8] Product Features - The VinFast VF 8 offers premium features such as vegan leather interiors, a 15.6-inch infotainment screen, and advanced safety features including 11 airbags [9][11] - The vehicle is equipped with a comprehensive Advanced Driver-Assistance System (ADAS) across both Eco and Plus versions, providing various driving aids for enhanced safety [10][11] - The VF Connect app enhances the driving experience with features like camp mode, pet mode, and integrated games, ensuring the vehicle becomes smarter over time [12] Pricing and Financing - The VF 8 is competitively priced with an MSRP starting at $39,900 for the Eco trim and $44,900 for the Plus trim, with leasing options beginning at $269 per month [13] - The vehicle also offers a 0% interest financing option and comes with an extensive warranty of 10 years or 125,000 miles for the vehicle and a 10-year unlimited mileage warranty for the battery under non-commercial use [13] Customer Experience - VinFast's philosophy of "leave no one behind" extends to passenger comfort, ensuring all occupants enjoy features like heating and ventilation in all four seats, along with advanced air quality control systems [14][15] - The company emphasizes the importance of passenger care, particularly for younger passengers, by incorporating health-focused features in the vehicle [15]