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Lee Felsenstein
Lee Felsenstein (born April 27, 1945) is an American computer engineer who played a central role in the development of the personal computer. He was one of the original members of the Homebrew Computer Club and the designer of the Osborne 1, the first mass-produced portable computer. Before the Osborne, Felsenstein designed the Intel 8080 based "SOL" computer from Processor Technology, the PennyWhistle modem, and other early "S-100 bus" era designs. His shared-memory alphanumeric video display design, the Processor Technology VDM-1 video display module board, was widely copied and became the basis for the standard display architecture of personal computers. Many of his designs were leaders in reducing costs of computer technologies for the purpose of making them available to large markets. His work featured a concern for the social impact of technology and was influenced by the philosophy of Ivan Illich. Felsenstein was the engineer for the Community Memory project, one of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philadelphia
Philadelphia, often called Philly, is the largest city in the Commonwealth of Pennsylvania, the sixth-largest city in the U.S., the second-largest city in both the Northeast megalopolis and Mid-Atlantic regions after New York City. Since 1854, the city has been coextensive with Philadelphia County, the most populous county in Pennsylvania and the urban core of the Delaware Valley, the nation's seventh-largest and one of world's largest metropolitan regions, with 6.245 million residents . The city's population at the 2020 census was 1,603,797, and over 56 million people live within of Philadelphia. Philadelphia was founded in 1682 by William Penn, an English Quaker. The city served as capital of the Pennsylvania Colony during the British colonial era and went on to play a historic and vital role as the central meeting place for the nation's founding fathers whose plans and actions in Philadelphia ultimately inspired the American Revolution and the nation's inde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alphanumeric Video Display
Alphanumericals or alphanumeric characters are a combination of alphabetical and numerical characters. More specifically, they are the collection of Latin letters and Arabic digits. An alphanumeric code is an identifier made of alphanumeric characters. Merriam-Webster suggests that the term "alphanumeric" may often additionally refer to other symbols, such as punctuation and mathematical symbols. In the POSIX/C locale, there are either 36 (A–Z and 0–9, case insensitive) or 62 (A–Z, a–z and 0–9, case-sensitive) alphanumeric characters. Subsets of alphanumeric used in human interfaces When a string of mixed alphabets and numerals is presented for human interpretation, ambiguities arise. The most obvious is the similarity of the letters I, O and Q to the numbers 1 and 0. Therefore, depending on the application, various subsets of the alphanumeric were adopted to avoid misinterpretation by humans. In passenger aircraft, aircraft seat maps and seats were designated by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contract Manufacturing
A contract manufacturer (CM) is a manufacturer that contracts with a firm for components or products (in which case it is a turnkey supplier). It is a form of outsourcing. A contract manufacturer performing packaging operations is called copacker or a ''contract packager''. Brand name companies focus on product innovation, design and sales, while the manufacturing takes place in independent factories (the turnkey suppliers). Most turnkey suppliers specialize in simply manufacturing physical products, but some are also able to handle a significant part of the design and customization process if needed. Some turnkey suppliers specialize in one base component (ex. memory chips) or a base process (e.g. plastic molding). Business model In a contract manufacturing business model, the hiring firm approaches the contract manufacturer with a design or formula. The contract manufacturer will quote the parts based on processes, labor, tooling, and material costs. Typically a hiring fir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Engineering And Computer Science
Computer Science and Engineering (CSE) is an academic program at many universities which comprises scientific and engineering aspects of computing. CSE is also a term often used in Europe to translate the name of engineering informatics academic programs. It is offered in both Undergraduate as well Postgraduate with specializations. Academic courses Academic programs vary between colleges, but typically include a combination of topics in computer science, computer engineering, and electrical engineering. Undergraduate courses usually include programming, algorithms and data structures, computer architecture, operating systems, computer networks, parallel computing, embedded systems, algorithms design, circuit analysis and electronics, digital logic and processor design, computer graphics, scientific computing, software engineering, database systems, digital signal processing, virtualization, computer simulations and games programming. CSE programs also include core subjects ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ampex
Ampex is an American electronics company founded in 1944 by Alexander M. Poniatoff as a spin-off of Dalmo-Victor. The name AMPEX is a portmanteau, created by its founder, which stands for Alexander M. Poniatoff Excellence.AbramsoThe History of television, 1942 to 2000– McFarland, 2003 – , page 286, Chapter 2, footnote 34 "1944 he founded Ampex (the name was created from his initials, AMP, plus "ex" for excellence)" Today, Ampex operates as Ampex Data Systems Corporation, a subsidiary of Delta Information Systems, and consists of two business units. The Silicon Valley unit, known internally as Ampex Data Systems (ADS), manufactures digital data storage systems capable of functioning in harsh environments. The Colorado Springs, Colorado unit, referred to as Ampex Intelligent Systems (AIS), serves as a laboratory and hub for the company's line of industrial control systems, cyber security products and services and its artificial intelligence/ machine learning technology. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of California, Berkeley
The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public land-grant research university in Berkeley, California. Established in 1868 as the University of California, it is the state's first land-grant university and the founding campus of the University of California system. Its fourteen colleges and schools offer over 350 degree programs and enroll some 31,800 undergraduate and 13,200 graduate students. Berkeley ranks among the world's top universities. A founding member of the Association of American Universities, Berkeley hosts many leading research institutes dedicated to science, engineering, and mathematics. The university founded and maintains close relationships with three national laboratories at Berkeley, Livermore and Los Alamos, and has played a prominent role in many scientific advances, from the Manhattan Project and the discovery of 16 chemical elements to breakthroughs in computer science and genomics. Berkeley i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Underground Newspaper
The terms underground press or clandestine press refer to periodicals and publications that are produced without official approval, illegally or against the wishes of a dominant (governmental, religious, or institutional) group. In specific recent (post-World War II) Asian, American and Western European context, the term "underground press" has most frequently been employed to refer to the independently published and distributed underground papers associated with the counterculture of the late 1960s and early 1970s in India and Bangladesh in Asia, in the United States and Canada in North America, and the United Kingdom and other western nations. It can also refer to the newspapers produced independently in repressive regimes. In German occupied Europe, for example, a thriving underground press operated, usually in association with the Resistance. Other notable examples include the ''samizdat'' and '' bibuła'', which operated in the Soviet Union and Poland respectively, during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berkeley Barb
The ''Berkeley Barb'' was a weekly underground newspaper published in Berkeley, California, during the years 1965 to 1980. It was one of the first and most influential of the counterculture newspapers, covering such subjects as the anti-war movement and Civil Rights Movement, as well as the social changes advocated by youth culture. History The newspaper was founded in August 1965 by Max Scherr, a middle-aged radical who had earlier been the owner of the Steppenwolf bar in Berkeley. Scherr was the editor and publisher from the newspaper's inception until the mid-1970s. The ''Barb'' carried a great deal of political news, mainly concerning opposition to the Vietnam War and activist political events surrounding the University of California, particularly the Vietnam Day Committee and the Free Speech Movement. It also served as a venue for music advertisements. Starting around 1967, the ''Barb'' was the first underground paper to have an extensive classified ad section carrying ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Free Speech Movement
The Free Speech Movement (FSM) was a massive, long-lasting student protest which took place during the 1964–65 academic year on the campus of the University of California, Berkeley. The Movement was informally under the central leadership of Berkeley graduate student Mario Savio. Other student leaders include Jack Weinberg, Michael Rossman, George Barton, Brian Turner, Bettina Aptheker, Steve Weissman, Michael Teal, Art Goldberg, Jackie Goldberg and others. With the participation of thousands of students, the Free Speech Movement was the first mass act of civil disobedience on an American college campus in the 1960s. Students insisted that the university administration lift the ban of on-campus political activities and acknowledge the students' right to free speech and academic freedom. The Free Speech Movement was influenced by the New Left, and was also related to the Civil Rights Movement and the Anti-Vietnam War Movement. To this day, the Movement's legacy continues to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Left
The New Left was a broad political movement mainly in the 1960s and 1970s consisting of activists in the Western world who campaigned for a broad range of social issues such as civil and political rights, environmentalism, feminism, gay rights, gender roles and drug policy reforms. Some see the New Left as an oppositional reaction to earlier Marxist and labor union movements for social justice that focused on dialectical materialism and social class, while others who used the term see the movement as a continuation and revitalization of traditional leftist goals. Some who self-identified as "New Left" rejected involvement with the labor movement and Marxism's historical theory of class struggle, although others gravitated to their own takes on established forms of Marxism and Marxism–Leninism, such as the New Communist movement (which drew from Maoism) in the United States or the K-GruppenThe K groups originally referred to the mainly Maoist-oriented small parties an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central High School (Philadelphia)
Central High School is a public high school in the LoganLogan Redevelopment Area Plan ." Philadelphia City Planning Commission. May 2002. 1 (document page 3). Retrieved on August 2, 2011. "The neighborhood is generally defined as including the area from Wingohocking Street north to Olney Avenue and from Broad Street east to the railroad right-of-way east of Marshall Street. Logan extends west to 16th Street north of Lindley Avenue, where Wakefield Park forms the boundary." section of . Central, the second-oldest continuously used public high school in the United States, was founded in 1836 and is a four-year [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Processor Technology SOL 20 Computer
Processor may refer to: Computing Hardware * Processor (computing) ** Central processing unit (CPU), the hardware within a computer that executes a program *** Microprocessor, a central processing unit contained on a single integrated circuit (IC) **** Application-specific instruction set processor (ASIP), a component used in system-on-a-chip design **** Graphics processing unit (GPU), a processor designed for doing dedicated graphics-rendering computations **** Physics processing unit (PPU), a dedicated microprocessor designed to handle the calculations of physics **** Digital signal processor (DSP), a specialized microprocessor designed specifically for digital signal processing ***** Image processor, a specialized DSP used for image processing in digital cameras, mobile phones or other devices **** Coprocessor **** Floating-point unit **** Network processor, a microprocessor specifically targeted at the networking application domain ** Multi-core processor, single compon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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