Workflow
Apple II
icon
Search documents
曾被乔布斯逼到崩溃,苹果8号工程师反手做了个工具“让老板自己设计”,竟在10分钟内定下Mac计算器原型,一用就是近20年
程序员的那些事· 2025-11-14 04:43
Core Insights - The article narrates a story about Chris Espinosa, one of Apple's earliest employees, who faced challenges in designing a calculator program for the Macintosh due to Steve Jobs' high standards and constant feedback [1][6][9] - Espinosa's innovative solution involved creating a "Steve Jobs Self-Made Calculator Kit," allowing Jobs to directly manipulate the design parameters, which ultimately led to a successful calculator interface for the Macintosh [11][12][22] Group 1: Background of Chris Espinosa - Chris Espinosa joined Apple at the age of 14, making him one of the youngest employees [2] - He initially left Apple to attend the University of California, Berkeley, but was persuaded by Jobs to return and join the Macintosh team [3][4] Group 2: Design Challenges and Solutions - Espinosa faced repeated criticism from Jobs regarding the design of the calculator, leading to a frustrating iterative process [9][10][21] - The breakthrough came when Espinosa created a toolkit that allowed Jobs to customize the design himself, which proved to be an effective communication method [11][12][22] Group 3: Impact and Legacy - The calculator design, finalized based on Jobs' preferences, was included in the first Macintosh released in 1984 and remained in use for nearly 20 years [16][22] - This incident highlighted a unique aspect of Jobs' management style, where he preferred hands-on interaction over verbal communication, influencing future software design practices at Apple [17][21][23]
The Pace of Innovation From Railroads to AI
Medium· 2025-10-04 16:57
Core Insights - The article discusses the timeline from the first demonstration of various technologies to their widespread usage, highlighting that newer inventions tend to achieve acceptance more quickly than older ones [2][3] Group 1: Railroads - The first railroads in England appeared around 1600, with the Merthyr Tramroad opening in 1802 and the Stockton & Darlington Railway in 1825, marking significant milestones in the adoption of steam locomotives [7][8] - The Liverpool and Manchester Railway, opened in 1830, is considered the start of widespread acceptance of railroads, taking 36 years from demonstration to widespread use [9] Group 2: Automobiles - The first gasoline automobile, the Benz Patent Motor Car, was invented in 1885 and went into production in 1886, leading to the introduction of assembly line production by Ford in 1913, which drastically reduced production time [11][12][13] Group 3: Airline Travel - It took 12 years from the Wright brothers' first flight in 1903 to the first scheduled airline service in 1913, with significant advancements occurring in the following decades [14][15][16] Group 4: Radio - The first radio broadcast occurred in 1895, but it took 13 years for commercial radio stations to emerge, with widespread usage also occurring in the same year [19][21][22] Group 5: Telephone - Alexander Graham Bell made the first telephone call in 1876, with commercial use starting in 1878 and widespread adoption achieved by 1880, just four years later [24] Group 6: Television - Electronic television was invented in 1927, with the first regular broadcasts starting in Germany in 1935 and widespread adoption in the US delayed until after WWII [25][28][29] Group 7: Color Television - Color television had a long development period, with CBS starting broadcasts in 1951, but widespread acceptance did not occur until 1961 [30][36] Group 8: Personal Computers - The first personal computer using a microprocessor was the Micral in 1973, with widespread adoption occurring just two years later in 1975 [37][42] Group 9: The Internet - The Internet's precursor, ARPANET, began in 1966, with commercial use starting in 1989 and widespread acceptance achieved by 1990 [44][45] Group 10: World Wide Web - The World Wide Web was developed in 1991, with commercial use and widespread adoption occurring within two years [46][47] Group 11: Artificial Intelligence - The field of artificial intelligence began with the Dartmouth Summer Research Project in 1956, with the first commercial product appearing in 1980 and widespread usage not occurring until 2010 [48][50][51]
一个25美元的芯片,如何引发计算革命?
半导体行业观察· 2025-08-31 04:36
Core Insights - The introduction of the $25 MOS Technology 6502 processor in 1975 revolutionized the computing industry by making microprocessors affordable for hobbyists and startups, contrasting with the $175-200 price range of competitors like Intel's 8080 and Motorola's 6800 [1][3][6] Group 1: Historical Context - In the 1970s, microprocessors were expensive, limiting access to companies and laboratories, which prompted Chuck Peddle and his team to create a simpler, cheaper CPU [3][8] - The 6502 was first showcased at the WESCON exhibition in 1975, where it gained immediate attention, leading to a significant price reduction from competitors [6][11] Group 2: Design and Features - The 6502 utilized approximately 4,500 transistors, which was 25-40% fewer than its competitors, resulting in a smaller chip size and lower production costs [8][10] - It featured a minimalist architecture with essential components, including an 8-bit accumulator, two index registers, a stack pointer, and a 16-bit program counter, which contributed to its efficiency [8][10] - The instruction set was streamlined, retaining only 56 out of 72 instructions from the Motorola 6800, which improved execution speed despite requiring programmers to use simpler instructions for complex tasks [10][11] Group 3: Impact on the Industry - The 6502 became the preferred processor for early personal computers, being used in products like the Apple I, Apple II, Commodore PET, and Atari 2600, thus democratizing computing [10][11][13] - Its design philosophy foreshadowed the RISC movement, emphasizing simplicity and efficiency, which influenced the development of modern CPU architectures, including ARM [13][14] Group 4: Legacy - The 6502's design principles continue to resonate today, with Western Design Center still producing derivatives of the chip, highlighting its enduring relevance in retro computing and embedded systems [14]
外媒:75岁的苹果联合创始人称快乐比成就更重要
Huan Qiu Wang Zi Xun· 2025-08-18 06:07
Core Viewpoint - Steve Wozniak, co-founder of Apple, emphasizes that wealth and power are not the purpose of his life, advocating for a life focused on happiness and ethical innovation [1][2] Group 1: Personal Philosophy - Wozniak's decision to sell most of his Apple shares in the 1980s was driven by his belief in philanthropy, contrasting sharply with the wealth accumulation tendencies of many tech giants [2] - He has a personal equation for happiness: happiness equals smiles minus frowns, reflecting his values [1] Group 2: Wealth and Philanthropy - Wozniak distributed millions of shares to early employees during Apple's IPO, showcasing his commitment to sharing wealth [2] - His estimated net worth is projected to be around $100 million by 2025, significantly lower than what it could have been, as he prioritizes charitable contributions to education and technology projects [2] Group 3: Critique of Industry Trends - Wozniak has criticized figures like Elon Musk, suggesting that extreme wealth can lead to a distorted perspective [2] - He expresses pride in Apple's valuation exceeding $1 trillion but does not equate success with financial metrics, instead advocating for innovation that positively impacts humanity [2]
这颗芯片,开启苹果帝国
3 6 Ke· 2025-08-05 02:41
Core Insights - The article discusses the revolutionary impact of the 6502 microprocessor, developed by MOS Technology, on the personal computer and gaming industries, highlighting its affordability and performance compared to competitors [5][6][42]. Group 1: Historical Context - The 6502 microprocessor was first delivered to customers in September 1975 and became a cornerstone for several iconic computers and gaming systems, including the Apple II and Commodore 64 [6][9]. - Chuck Peddle and Bill Mensch, key figures in the development of the 6502, left Motorola due to dissatisfaction with the pricing and production of the 6800 processor, leading to the creation of the 6502 at MOS Technology [7][37]. Group 2: Technical Innovations - The 6502 was notable for its simplified instruction set and a manufacturing process that achieved a yield ten times higher than competitors, significantly lowering costs [5][23]. - The chip contained 3,510 transistors and was produced using a 5-volt NMOS process, which allowed for a smaller chip size and higher performance [16][23]. Group 3: Market Impact - The introduction of the 6502 led to a drastic reduction in microprocessor prices, with the 6502 priced at $25 compared to competitors like Intel's 8080 and Motorola's 6800, which were priced around $200 [3][5]. - The success of the 6502 prompted Motorola to lower the prices of its 6800 microprocessor and led to legal disputes over patent rights, highlighting the competitive tension in the semiconductor industry [38][39]. Group 4: Legacy - The 6502's architecture and affordability made it the preferred choice for early home computers and gaming consoles, establishing a legacy that continues to influence the industry [41][42]. - The article concludes by emphasizing the significance of the 6502 as a landmark achievement in the history of microprocessors, marking its 50th anniversary [5][42].
这颗芯片,开启苹果帝国
半导体行业观察· 2025-08-05 01:37
Core Insights - The article discusses the revolutionary impact of the 6502 microprocessor, developed by MOS Technology, on the personal computer and gaming industries, highlighting its affordability and performance compared to competitors like Intel and Motorola [4][6][52] Group 1: Historical Context - The 6502 microprocessor was first delivered to customers in September 1975 and became a cornerstone in several iconic computers and gaming systems, including Apple II and Commodore 64 [8][9] - Chuck Peddle and Bill Mensch, key figures in the development of the 6502, aimed to create a low-cost alternative to Motorola's 6800 processor, which was expensive and slow [9][45] Group 2: Technical Innovations - The 6502 featured a simplified instruction set and a manufacturing process that achieved a yield ten times higher than competitors, significantly lowering costs and driving the personal computer revolution [6][38] - The chip was designed using a combination of manual and computer-aided techniques, with a focus on minimizing transistor size and maximizing performance [31][36] Group 3: Market Impact - The introduction of the 6502 led to a price war in the microprocessor market, prompting Motorola to reduce the price of its 6800 processor from $175 to $69 shortly after the 6502's launch [48][50] - The 6502's affordability allowed it to become the preferred choice for early home computers and gaming consoles, establishing a significant market presence [52]