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Mark Weiser
Mark D. Weiser (July 23, 1952 – April 27, 1999) was a computer scientist and chief technology officer (CTO) at Xerox PARC. Weiser is widely considered to be the father of ubiquitous computing, a term he coined in 1988. Within Silicon Valley, Weiser was broadly viewed as a visionary and computer pioneer, and his ideas have influenced many of the world's leading computer scientists. Early life and education Weiser was born in Chicago, Illinois, to David and Audra Weiser. He grew up in Stony Brook, New York. He moved to Sarasota, Florida, to study philosophy at New College of Florida but dropped out in his second year when he ran out of money. He then moved to Ann Arbor, Michigan, where he found a job as a computer programmer. While working as a computer programmer he began taking computer science classes and excelled to the point that he was directly admitted into a master's program at the University of Michigan. He studied Computer and Communication Science at the Uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harvey, Illinois
Harvey is a city in Cook County, Illinois, United States. The population was 20,324 at the 2020 census. Harvey is bordered by the villages of Dixmoor and Riverdale to the north; Dolton, Phoenix, and South Holland to the east; East Hazel Crest to the south; and Hazel Crest, Markham and Posen to the west. History Harvey was founded in 1891 by Turlington W. Harvey, a close associate of Dwight Moody, the founder of the Moody Bible Institute in Chicago. Harvey was originally intended as a model town for Christian values and was one of the Temperance Towns. It was closely modeled after the company town of Pullman, which eventually was annexed into the city of Chicago. The city had its greatest growth in the prosperous postwar years, when it was home to the Buda Engine Co., which was acquired by Allis-Chalmers in 1953. The city reached its peak population in 1980. By this time, it was beginning to suffer losses in jobs and population through restructuring of steel and sim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Association For Computing Machinery
The Association for Computing Machinery (ACM) is a US-based international learned society for computing. It was founded in 1947 and is the world's largest scientific and educational computing society. The ACM is a non-profit professional membership group, claiming nearly 110,000 student and professional members . Its headquarters are in New York City. The ACM is an umbrella organization for academic and scholarly interests in computer science ( informatics). Its motto is "Advancing Computing as a Science & Profession". History In 1947, a notice was sent to various people: On January 10, 1947, at the Symposium on Large-Scale Digital Calculating Machinery at the Harvard computation Laboratory, Professor Samuel H. Caldwell of Massachusetts Institute of Technology spoke of the need for an association of those interested in computing machinery, and of the need for communication between them. ..After making some inquiries during May and June, we believe there is ample interest to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stanford University
Stanford University, officially Leland Stanford Junior University, is a private research university in Stanford, California. The campus occupies , among the largest in the United States, and enrolls over 17,000 students. Stanford is considered among the most prestigious universities in the world. Stanford was founded in 1885 by Leland and Jane Stanford in memory of their only child, Leland Stanford Jr., who had died of typhoid fever at age 15 the previous year. Leland Stanford was a U.S. senator and former governor of California who made his fortune as a railroad tycoon. The school admitted its first students on October 1, 1891, as a coeducational and non-denominational institution. Stanford University struggled financially after the death of Leland Stanford in 1893 and again after much of the campus was damaged by the 1906 San Francisco earthquake. Following World War II, provost of Stanford Frederick Terman inspired and supported faculty and graduates' entrepreneu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communications, Computers, And Networks (Scientific American)
The '' Scientific American'' special issue on Communications, Computers, and Networks is a special issue of ''Scientific American'' dedicated to articles concerning impending changes to the Internet in the period prior to the expansion and mainstreaming of the World Wide Web via Mosaic and Netscape. This issue contained essays by a number of important computer science and internet pioneers. It bore the promotional cover title ''Scientific American presents the September 1991 Single Copy Issue: Communications, Computers, and Networks''. Reviews University of California, Berkeley's September 1991 online journal, "Current Cites" commented: "Scientific American Special Issue on Communications, Computers and Networks 265(3) (September 1991): If you purchase a single issue of a magazine this year, this should be it. Filled with eleven articles by some of the biggest names in computer networking, this issue covers all bases and includes suggestions for further readings on the issu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobile Computing
Mobile computing is human–computer interaction in which a computer is expected to be transported during normal usage, which allows for the transmission of data, voice, and video. Mobile computing involves mobile communication, mobile hardware, and mobile software. Communication issues include ad hoc networks and infrastructure networks as well as communication properties, protocols, data formats, and concrete technologies. Hardware includes mobile devices or device components. Mobile software deals with the characteristics and requirements of mobile applications. Main principles * Portability: Devices/nodes connected within the mobile computing system should facilitate mobility. These devices may have limited device capabilities and limited power supply but should have a sufficient processing capability and physical portability to operate in a movable environment. * Connectivity: This defines the quality of service (QoS) of the network connectivity. In a mobile computing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Industry
A computer is a machine that can be programmed to carry out sequences of arithmetic or logical operations ( computation) automatically. Modern digital electronic computers can perform generic sets of operations known as programs. These programs enable computers to perform a wide range of tasks. A computer system is a nominally complete computer that includes the hardware, operating system (main software), and peripheral equipment needed and used for full operation. This term may also refer to a group of computers that are linked and function together, such as a computer network or computer cluster. A broad range of industrial and consumer products use computers as control systems. Simple special-purpose devices like microwave ovens and remote controls are included, as are factory devices like industrial robots and computer-aided design, as well as general-purpose devices like personal computers and mobile devices like smartphones. Computers power the Internet, which links ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy
In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The unit of measurement for energy in the International System of Units (SI) is the joule (J). Common forms of energy include the kinetic energy of a moving object, the potential energy stored by an object (for instance due to its position in a field), the elastic energy stored in a solid object, chemical energy associated with chemical reactions, the radiant energy carried by electromagnetic radiation, and the internal energy contained within a thermodynamic system. All living organisms constantly take in and release energy. Due to mass–energy equivalence, any o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Instructions Per Joule
In computing, performance per watt is a measure of the energy efficiency of a particular computer architecture or computer hardware. Literally, it measures the rate of computation that can be delivered by a computer for every watt of power consumed. This rate is typically measured by performance on the LINPACK benchmark when trying to compare between computing systems: an example using this is the Green500 list of supercomputers. Performance per watt has been suggested to be a more sustainable measure of computing than Moore’s Law. System designers building parallel computers, such as Google's hardware, pick CPUs based on their performance per watt of power, because the cost of powering the CPU outweighs the cost of the CPU itself. Spaceflight computers have hard limits on the maximum power available and also have hard requirements on minimum real-time performance. A ratio of processing speed to required electrical power is more useful than raw processing speed. D. J. Sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Instructions Per Second
Instructions per second (IPS) is a measure of a computer's processor speed. For complex instruction set computers (CISCs), different instructions take different amounts of time, so the value measured depends on the instruction mix; even for comparing processors in the same family the IPS measurement can be problematic. Many reported IPS values have represented "peak" execution rates on artificial instruction sequences with few branches and no cache contention, whereas realistic workloads typically lead to significantly lower IPS values. Memory hierarchy also greatly affects processor performance, an issue barely considered in IPS calculations. Because of these problems, synthetic benchmarks such as Dhrystone are now generally used to estimate computer performance in commonly used applications, and raw IPS has fallen into disuse. The term is commonly used in association with a metric prefix (k, M, G, T, P, or E) to form kilo instructions per second (kIPS), million instruct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calm Technology
Calm technology or calm design is a type of information technology where the interaction between the technology and its user is designed to occur in the user's periphery rather than constantly at the center of attention. Information from the technology smoothly shifts to the user's attention when needed but otherwise stays calmly in the user's periphery. Mark Weiser and John Seely Brown describe calm technology as "that which informs but doesn't demand our focus or attention." The use of calm technology is paired with ubiquitous computing as a way to minimize the perceptible invasiveness of computers in everyday life.Tugui, Alexandru (2004)"Calm Technologies In A Multimedia World" ACM Digital Library. Principles For a technology to be considered calm technology, there are three core principles it should adhere to: # The user's attention to the technology must reside mainly in the periphery. This means that either the technology can easily shift between the center of attention a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Seely Brown
John Seely Brown (born 1940), also known as "JSB", is an American researcher who specializes in organizational studies with a particular bend towards the organizational implications of computer-supported activities. Brown served as Director of Xerox PARC from 1990 to 2000 and as Chief Scientist at Xerox from 1992 to 2002; during this time the company played a leading role in the development of numerous influential computer technologies. Brown is the co-author of '' The Social Life of Information,'' a 2000 book which analyzes the adoption of information technologies. Early life John Seely Brown was born in 1940 in Utica, New York. Brown graduated from Brown University in 1962 with degrees in physics and mathematics. He received a Ph.D. from the University of Michigan in computer and communication sciences in 1970. Career His research interests include the management of radical innovation, digital culture, ubiquitous computing, autonomous computing and organizational learning. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Severe Tire Damage (band)
Severe Tire Damage is an American rock and roll "garage" band from Palo Alto, California, United States. Innovation Severe Tire Damage was the first band to perform live on the Internet. On June 24, 1993, the band was playing a gig at Xerox PARC while elsewhere in the building, scientists were discussing new technology (the MBone) for broadcasting on the Internet using livestreaming (known as multicasting at the time). As proof of their technology, the band was broadcast and could be seen live in Australia and elsewhere. On Friday, November 18, 1994, the Rolling Stones decided to broadcast one of their concert tours on the Internet. Before their broadcast, Severe Tire Damage returned to the Internet, this time becoming the "opening act" for the Stones. Instead of an obscure Australian researcher, the entire world press was watching this time, and Severe Tire Damage was elevated from obscurity to Warholian fame. Newsweek magazine described Severe Tire Damage as being "a l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
