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University Of Illinois Department Of Computer Science
The University of Illinois Department of Computer Science is the academic department encompassing the discipline of computer science at the University of Illinois at Urbana-Champaign. According to U.S. News & World Report, both its undergraduate and graduate programs rank in the top five among American universities. The department ranks equally high in faculty submissions to reputable journals and academic conferences, as determined by CSRankings.org. According to Computer Science Open Rankings, the department ranks equally high in placing Ph.D. students in tenure-track positions at top universities and winning best paper awards. From before its official founding in 1964 to today, the department's faculty members and alumni have contributed to projects including the ORDVAC, PLATO, Mosaic (web browser), JavaScript and LLVM, and have founded companies including Siebel Systems, Netscape, Mozilla, PayPal, Yelp, YouTube, and Malwarebytes. History In 1949, the University of Illinois c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas M
Thomas may refer to: People * List of people with given name Thomas * Thomas (name) * Thomas (surname) * Saint Thomas (other) * Thomas Aquinas (1225–1274) Italian Dominican friar, philosopher, and Doctor of the Church * Thomas the Apostle * Thomas (bishop of the East Angles) (fl. 640s–650s), medieval Bishop of the East Angles * Thomas (Archdeacon of Barnstaple) (fl. 1203), Archdeacon of Barnstaple * Thomas, Count of Perche (1195–1217), Count of Perche * Thomas (bishop of Finland) (1248), first known Bishop of Finland * Thomas, Earl of Mar (1330–1377), 14th-century Earl, Aberdeen, Scotland Geography Places in the United States * Thomas, Illinois * Thomas, Indiana * Thomas, Oklahoma * Thomas, Oregon * Thomas, South Dakota * Thomas, Virginia * Thomas, Washington * Thomas, West Virginia * Thomas County (other) * Thomas Township (other) Elsewhere * Thomas Glacier (Greenland) Arts, entertainment, and media * ''Thomas'' (Burton nove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PayPal
PayPal Holdings, Inc. is an American multinational financial technology company operating an online payments system in the majority of countries that support online money transfers, and serves as an electronic alternative to traditional paper methods such as checks and money orders. The company operates as a payment processor for online vendors, auction sites and many other commercial users, for which it charges a fee. Established in 1998 as Confinity, PayPal went public through an IPO in 2002. It became a wholly owned subsidiary of eBay later that year, valued at $1.5 billion. In 2015 eBay spun off PayPal to its shareholders, and PayPal became an independent company again. The company was ranked 143rd on the 2022 Fortune 500 of the largest United States corporations by revenue. History Early history PayPal was originally established by Max Levchin, Peter Thiel, and Luke Nosek in December 1998 as Confinity, a company that developed security software for hand-held ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Division Algorithm
A division algorithm is an algorithm which, given two integers N and D, computes their quotient and/or remainder, the result of Euclidean division. Some are applied by hand, while others are employed by digital circuit designs and software. Division algorithms fall into two main categories: slow division and fast division. Slow division algorithms produce one digit of the final quotient per iteration. Examples of slow division include restoring, non-performing restoring, non-restoring, and SRT division. Fast division methods start with a close approximation to the final quotient and produce twice as many digits of the final quotient on each iteration. Newton–Raphson and Goldschmidt algorithms fall into this category. Variants of these algorithms allow using fast multiplication algorithms. It results that, for large integers, the computer time needed for a division is the same, up to a constant factor, as the time needed for a multiplication, whichever multiplication algor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James E
James is a common English language surname and given name: *James (name), the typically masculine first name James * James (surname), various people with the last name James James or James City may also refer to: People * King James (other), various kings named James * Saint James (other) * James (musician) * James, brother of Jesus Places Canada * James Bay, a large body of water * James, Ontario United Kingdom * James College, a college of the University of York United States * James, Georgia, an unincorporated community * James, Iowa, an unincorporated community * James City, North Carolina * James City County, Virginia ** James City (Virginia Company) ** James City Shire * James City, Pennsylvania * St. James City, Florida Arts, entertainment, and media * ''James'' (2005 film), a Bollywood film * ''James'' (2008 film), an Irish short film * ''James'' (2022 film), an Indian Kannada-language film * James the Red Engine, a character in ''Thomas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donald B
Donald is a masculine given name derived from the Gaelic name ''Dòmhnall''.. This comes from the Proto-Celtic *''Dumno-ualos'' ("world-ruler" or "world-wielder"). The final -''d'' in ''Donald'' is partly derived from a misinterpretation of the Gaelic pronunciation by English speakers, and partly associated with the spelling of similar-sounding Germanic names, such as '' Ronald''. A short form of ''Donald'' is '' Don''. Pet forms of ''Donald'' include ''Donnie'' and ''Donny''. The feminine given name ''Donella'' is derived from ''Donald''. ''Donald'' has cognates in other Celtic languages: Modern Irish ''Dónal'' (anglicised as ''Donal'' and ''Donall'');. Scottish Gaelic ''Dòmhnall'', ''Domhnull'' and ''Dòmhnull''; Welsh '' Dyfnwal'' and Cumbric ''Dumnagual''. Although the feminine given name ''Donna'' is sometimes used as a feminine form of ''Donald'', the names are not etymologically related. Variations Kings and noblemen Domnall or Domhnall is the name of many an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Illiac Suite
''Illiac Suite'' (later retitled String Quartet No. 4)Andrew Stiller, "Hiller, Lejaren (Arthur)", ''Grove Music Online'' (reviewed December 3, 2010; accessed December 14, 2014). is a 1957 composition for string quartet which is generally agreed to be the first score composed by an electronic computer.Denis L. Baggi,The Role of Computer Technology in Music and Musicology", ''lim.dico.unimi.it'' (December 9, 1998). Lejaren Hiller, in collaboration with Leonard Isaacson, programmed the ILLIAC I computer at the University of Illinois at Urbana–Champaign (where both composers were professors) to generate compositional material for his String Quartet No. 4. The piece consists of four movements, corresponding to four experiments: the first is about the generation of '' cantus firmi'', the second generates four-voice segments with various rules, the third deals with rhythm, dynamics and playing instructions, and the fourth with various models and probabilities for generative grammar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ILLIAC II
The ILLIAC II was a revolutionary super-computer built by the University of Illinois that became operational in 1962. Description The concept, proposed in 1958, pioneered Emitter-coupled logic (ECL) circuitry, pipelining, and transistor memory with a design goal of 100x speedup compared to ILLIAC I. ILLIAC II had 8192 words of core memory, backed up by 65,536 words of storage on magnetic drums. The core memory access time was 1.8 to 2 µs. The magnetic drum access time was 8.5ms. A "fast buffer" was also provided for storage of short loops and intermediate results (similar in concept to what is now called cache). The "fast buffer" access time was 0.25 µs. The word size was 52 bits. Floating point numbers used a format with 7 bits of exponent (power of 4) and 45 bits of mantissa. Instructions were either 26 bits or 13 bits long, allowing packing of up to 4 instructions per memory word. Rather than naming the pipeline stages, "Fetch, Decode, and Execute" (as on Stretch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclone (computer)
The Cyclone, was a vacuum tube computer, built by Iowa State College (later University) at Ames, Iowa. The computer was commissioned in July 1959. It was based on the IAS architecture developed by John von Neumann. The prototype was ILLIAC, the University of Illinois Automatic Computer. The Cyclone used 40-bit words, used two 20-bit instructions per word, and each instruction had an eight-bit op-code and a 12-bit operand or address field. In general IAS-based computers were not code compatible with each other, although originally math routines which ran on the ILLIAC would also run on the Cyclone. The Cyclone was completed just as the transistor was replacing the vacuum tube as an active computing element. The Cyclone had about 2,500 vacuum tubes, 1,521 of which were type 5844. (The IBM 1401 computer, announced the same year, was fully transistorized. About 15,000 IBM 1401 machines were produced.) The supervisor of the Cyclone computer construction was Dr. R. M. Stewart, a profe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SILLIAC
The SILLIAC (''Sydney version of the Illinois Automatic Computer'', i.e. the ''Sydney ILLIAC''), an early computer built by the University of Sydney, Australia, was based on the ILLIAC and ORDVAC computers developed at the University of Illinois. Like other early computers, SILLIAC was physically large. The computer itself was a single large cabinet 2.5 m high, 3 m wide and 0.6 m deep in one room. Its power supply occupied a second room and air conditioning required an additional room in the basement. It ran until May 17, 1968 when it was replaced by a faster and bigger machine. Although it was then broken up, some pieces of SILLIAC are at the Powerhouse Museum and others are displayed at Sydney University. History SILLIAC had its genesis in late 1953 when Harry Messel, the dynamic new head of the School of Physics, and John Blatt, newly arrived researcher, both independently realised that the School needed an electronic computer as a tool for theoretical p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MUSASINO-1
The MUSASINO-1 was one of the earliest electronic digital computers built in Japan. Construction started at the Electrical Communication Laboratories of NTT at Musashino, Tokyo in 1952 and was completed in July 1957. The computer was used until July 1962. Saburo Muroga, a University of Illinois visiting scholar and member of the ILLIAC I team, returned to Japan and oversaw the construction of MUSASINO-1. Using 519 vacuum tubes and 5,400 parametrons, the MUSASINO-1 possessed a magnetic core memory, initially of 32 (later expanded to 256) words. A word was composed of 40 bits, and two instructions could be stored in a single word. Addition time was clocked at 1,350 microseconds, multiplication at 6,800 microseconds, and division time at 26.1 milliseconds. The MUSASINO-1's instruction set was a superset of the ILLIAC I's instructions, so it could generally use the latter's software. However, many of the programs for the ILLIAC used some of the unused bits in the instructions to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MISTIC
The MISTIC, or ''Michigan State Integral Computer'', was the first computer system at Michigan State University and was built by its students, faculty and staff in 1957. Powered by vacuum tubes, its design was based on ILLIAC, the supercomputer built at University of Illinois at Urbana–Champaign, a descendant of the IAS architecture developed by John von Neumann. History The interest in developing a computer system at Michigan State University (MSU) began several years before MISTIC was conceived. In 1954 when MSU was known as Michigan State College (MSC), Professor J. Sutherland Frame of the Mathematics department sent a proposal for a computer donation from the United States Army Aberdeen Proving Ground. Unfortunately, a federal agency won that donation and the computing vision was not realized at that time. However, all hope was not lost. In April 1955, Dr. Frame, Dr. Kenneth Arnold, Dr. John Hofman, Francis Martin, Dr. George Swenson Jr., Dr. Lloyd Turk, and Dr. Charles Wel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ILLIAC I
The ILLIAC I (Illinois Automatic Computer), a pioneering computer in the ILLIAC series of computers built in 1952 by the University of Illinois, was the first computer built and owned entirely by a United States educational institution. Computer The project was the brainchild of Ralph Meagher and Abraham H. Taub, who both were associated with Princeton's Institute for Advanced Study before coming to the University of Illinois. The ILLIAC I became operational on September 1, 1952. It was the second of two identical computers, the first of which was ORDVAC, also built at the University of Illinois. These two machines were the first pair of machines to run the same instruction set. ILLIAC I was based on the IAS machine Von Neumann architecture as described by mathematician John von Neumann in his influential '' First Draft of a Report on the EDVAC''. Unlike most computers of its era, the ILLIAC I and ORDVAC computers were twin copies of the same design, with software compatibili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
