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93-650: General Electric initially publicly announced the GE 645 at the Fall Joint Computer Conference in November 1965. At a subsequent press conference in December of that year it was announced that they would be working towards "broad commercial availability" of the system. However they would subsequently withdraw it from active marketing at the end of 1966. In total at least 6 sites ran GE 645 systems in

186-399: A drum , was in reality a large fixed-head hard disk with one head per track, this was a OEM product from Librascope . The EMU consisted of 4,096 tracks providing 4MW (megawords) of storage (equivalent to 16MB). Each track had a dedicated read/write head, these were organised into groups of 16 "track sets" which are used to read/write a sector. A sector is the default unit of data allocation in

279-470: A multilevel feedback queue . It also had some special memory-management hardware, a clock interrupt, and the ability to trap certain instructions. CTSS at first had only an assembler, FAP , and a compiler, MAD. Also, Fortran II code could be translated into MAD code by using MADTRN. Later half of the system was written in MAD. Later there were other programming languages including COMIT II , LISP 1.5 and

372-538: A $ 3 billion deal and also bought a $ 1.6 billion portfolio of retail credit cards from Citigroup Inc. On October 14, 2010, GE announced the acquisition of data migration & SCADA simulation specialists Opal Software. In December 2010, for the second time that year (after the Dresser acquisition), GE bought the oil sector company Wellstream , an oil pipe maker, for 800 million pounds ($ 1.3 billion). In March 2011, GE announced that it had completed

465-517: A 2 (18-bit) absolute address thus restricting the processor to only been able to access the lower 256 KW of physical core memory. The processor will switch to this mode in the event of a fault or interrupt and will remain in it until it executes transfer instruction whose operand address has been obtained via the appending process. By default this is normal mode of Memory addressing, both Master and Slave modes normally operate in this mode. Indirect words and operands are accessed via Appending Mechanism via

558-574: A Ponzi Scheme run by Bernard Madoff , accused General Electric of being a "bigger fraud than Enron," alleging $ 38 billion in accounting fraud. GE denied wrongdoing. On October 6, 2020, General Electric reported it received a Wells notice from the Securities and Exchange Commission stating the SEC may take civil action for possible violations of securities laws. Compatible Time-Sharing System The Compatible Time-Sharing System ( CTSS )

651-446: A changed code, to getting the results. John McCarthy wrote a memo about that at MIT, after which a preliminary study committee and a working committee were established at MIT, to develop time sharing. The committees envisaged many users using the computer at the same time, decided the details of implementing such system at MIT, and started the development of the system. By July, 1961 a few time sharing commands had become operational on

744-538: A controlling interest in the company, while GE would retain a 49% stake and would buy out shares owned by Vivendi. Vivendi would sell its 20% stake in NBCUniversal to GE for US$ 5.8 billion. Vivendi would sell 7.66% of NBCUniversal to GE for US$ 2 billion if the GE/Comcast deal was not completed by September 2010 and then sell the remaining 12.34% stake of NBCUniversal to GE for US$ 3.8 billion when

837-502: A demonstration of printing mathematical tables in braille was shown. A short FORTRAN II program was written to produce a conversion table from inches to millimeters in braille via the BRAILLEMBOSS braille page printer. The Intrex Retrieval System ran on CTSS. Intrex was an experimental, pilot-model machine-oriented bibliographic storage and retrieval system with a database that stored a catalog of roughly 15,000 journal articles. It

930-490: A development partner given the considerable hardware modifications that would be required to meet their requirements, which were specified as: They proceeded to visit among others Burroughs , CDC , DEC , General Electric , IBM and Sperry Univac . Of these GE and IBM showed the strongest interest. By the summer of 1964 proposals was received from DEC, IBM and GE, after evaluations by the Technical Committee

1023-590: A division of GE called GE Information Systems (GEIS). The new company, named GXS , is based in Gaithersburg, Maryland . GXS is a provider of business-to-business e-commerce solutions. GE maintains a minority stake in GXS. Also in 2002, GE Wind Energy was formed when GE bought the wind turbine manufacturing assets of Enron Wind after the Enron scandals . In 2004, GE bought 80% of Vivendi Universal Entertainment,

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1116-530: A few years later with Thomson-Houston Electric Company , led by Charles Coffin . In 1887, Hart left to become superintendent of the Edison Electric Company. General Electric was formed through the 1892 merger of Edison General Electric Company and Thomson-Houston Electric Company with the support of Drexel, Morgan & Co. The original plants of both companies continue to operate under the GE banner to this day. The General Electric business

1209-515: A joint venture in steam turbines, plus a €3.1 billion cash investment. In June 2014, a formal offer from GE worth $ 17 billion was agreed by the Alstom board. Part of the transaction involved the French government taking a 20% stake in Alstom to help secure France's energy and transport interests and French jobs. A rival offer from Siemens Mitsubishi Heavy Industries was rejected. The acquisition

1302-467: A long-time Edison supporter and investor, proposed to consolidate all of business interests. The proposal was supported by Samuel Insull - who served as his secretary and, later, financier - as well other investors. In 1889, Drexel, Morgan & Co. —a company founded by J.P. Morgan and Anthony J. Drexel —financed Edison's research and helped merge several of Edison's separate companies under one corporation, forming Edison General Electric Company, which

1395-521: A manufacturer of dynamos and large electric motors in Schenectady, New York ; Bergmann & Company, a manufacturer of electric lighting fixtures , sockets , and other electric lighting devices; and Edison Electric Light Company, the patent -holding company and financial arm for Edison's lighting experiments, backed by J. P. Morgan (1837–1913) and the Vanderbilt family . Henry Villard,

1488-589: A modified IBM 7090 in 1962 and later a modified IBM 7094 called the "blue machine" to distinguish it from the Project MAC CTSS IBM 7094. Routine service to MIT Comp Center users began in the summer of 1963 and was operated there until 1968. A second deployment of CTSS on a separate IBM 7094 that was received in October 1963 (the "red machine") was used early on in Project MAC until 1969 when

1581-642: A paper "Time Sharing in Large Fast Computers" at the UNESCO Information Processing Conference in Paris, where he envisaged a programmer debugging a program at a console (like a teletype ) connected to the computer, while another program was running in the computer at the same time. Debugging programs was an important problem at that time, because with batch processing, it then often took a day from submitting

1674-448: A reading station for each user". Computers at that time, like IBM 704 , were not powerful enough to implement such system, but at the end of 1958, MIT's Computation Center nevertheless added a typewriter input to its 704 with the intent that a programmer or operator could "obtain additional answers from the machine on a time-sharing basis with other programs using the machine simultaneously". In June 1959, Christopher Strachey published

1767-640: A tape on the CTSS system which would be inputted to GECOS on the 635 system in MIT so that it would run under the 6.36 simulator; the resulting output would be carried back via tape to CTSS for debugging/analysis. This simulated environment was replaced by the first 645 hardware in 1967. The GECOS operating system was fully replaced by Multics in 1969 with the Multics supervisor separated by protection rings with "gates" allowing access from user mode. A later generation in

1860-483: A unanimous decision was made to accept the GE proposal for the GE 645 which was a design based on the GE 635 but modified to meet the requirements outlined above. While the GE 645 hardware was being designed and debugged in Phoenix, a system was put in place where a GE 635 could be used to run a simulator known as the 6.36, so that development and checkout of Multics could occur in parallel. This process involved creating

1953-409: A version of ALGOL . Each user had their own directory , and there were also shared directories for groups of people with the same "problem number". Each file had two names, the second indicating its type as did the extension in later system. At first, each file could have one of four modes: temporary, permanent, read-only class 1, and read-only class 2. Read-only class 1 allowed the user to change

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2046-402: Is normal mode that the processor should be executing in at any point in time. Nearly all instructions will run in this mode aside from a small set of privileged instructions which cannot execute in this mode. Execution of such instructions will trigger an illegal procedure fault, also the ability to inhibit interrupts (bit 28 of instruction word) is forbidden. Format of instruction addresses is via

2139-487: Is now used only to protect kernel mode from user mode code just as it was in the original use of the 645. General Electric General Electric Company ( GE ) was an American multinational conglomerate founded in 1892, incorporated in the state of New York and headquartered in Boston . The company had several divisions, including aerospace , energy , healthcare , and finance . In 2020, GE ranked among

2232-521: Is one of GE's four multifunctional shared services centers worldwide in Pudong , China; Budapest , Hungary; and Monterrey , Mexico. In April 2015, GE announced its intention to sell off its property portfolio, worth $ 26.5 billion, to Wells Fargo and The Blackstone Group . It was announced in April 2015 that GE would sell most of its finance unit and return around $ 90 billion to shareholders as

2325-652: The Fortune 500 as the 33rd largest firm in the United States by gross revenue . In 2023, the company was ranked 64th in the Forbes Global 2000 . In 2011, GE ranked among the Fortune 20 as the 14th most profitable company, but later very severely underperformed the market (by about 75%) as its profitability collapsed. Two employees of GE— Irving Langmuir (1932) and Ivar Giaever (1973)—have been awarded

2418-569: The DATANET-30 and Datanet 355 message switching computers (DATANET-30 and 355 were also used as front end processors for GE mainframe computers). A Datanet 500 computer was designed but never sold. In 1956 Homer Oldfield had been promoted to General Manager of GE's Computer Department. He facilitated the invention and construction of the Bank of America ERMA system, the first computerized system designed to read magnetized numbers on checks. But he

2511-451: The DATANET-30 front end processor for communications. Instead both sets of functionality was combined into one unit called a GIOC (Generalized I/O Controller) which provided dedicated channels for both Peripheral (Disc/Tape) and Terminal I/O. The GIOC acted as an Active Device and was directly connected to memory via dedicated links to each System Controller that was present in a specific configuration. The Extended Memory Unit, though termed

2604-517: The Fortran Monitor System . The system used an IBM 7090 , modified by Herbert M. Teager , with added 3 Flexowriters for user consoles, and maybe a timer . Each of the 3 users had two tape units , one for the user's file directory, and one for dumping the core (program in memory). There was also one tape unit for the system commands, there were no disk drives. The memory was 27 k words (36-bit words) for users, and 5 k words for

2697-592: The MIT Computation Center using a IBM 709 and was first demonstrated in November 1961, it was subsequently upgraded to a 7090 in 1962, and finally to a 7094 in 1963. This required modification to these standard systems via the addition of a number of RPQ's which among others added two banks of memory and bank-switching between user and supervisor mode, i.e. programs running in the A-core memory bank had access to instructions that programs running in

2790-505: The Multics operating system on the GE 645 mainframe computer. The project took longer than expected and was not a major commercial success, but it demonstrated concepts such as single-level storage , dynamic linking , hierarchical file system , and ring-oriented security . Active development of Multics continued until 1985. GE got into computer manufacturing because, in the 1950s, they were

2883-577: The NBC television network for $ 6.28 billion; this merger surpassed the Capital Cities/ABC merger from earlier that year as the largest non-oil company merger in world business history. The remainder of RCA's divisions and assets were sold to various companies, including Bertelsmann Music Group which acquired RCA Records . Thomson SA , which licensed the manufacture of RCA and GE branded electronics, traced its roots to Thomson-Houston, one of

GE 645 - Misplaced Pages Continue

2976-561: The National Broadcasting Company (NBC), which built two radio broadcasting networks. In 1930, General Electric was charged with antitrust violations and was ordered to divest itself of RCA. In 1927, Ernst Alexanderson of GE made the first demonstration of television broadcast reception at his General Electric Realty Plot home at 1132 Adams Road in Schenectady, New York. On January 13, 1928, he made what

3069-577: The Nobel Prize . Following the Great Recession of the late 2000s decade, General Electric began selling off various divisions and assets, including its appliances and financial capital divisions, under Jeff Immelt 's leadership as CEO. John Flannery, Immelt's replacement in 2017, further divested General Electric's assets in locomotives and lighting in order to focus the company more on aviation. After restrictions on air travel during

3162-647: The transmission of electrical power . In 1896, General Electric was one of the original 12 companies listed on the newly formed Dow Jones Industrial Average , where it remained a part of the index for 122 years, though not continuously. In 1911, General Electric absorbed the National Electric Lamp Association (NELA) into its lighting business. GE established its lighting division headquarters at Nela Park in East Cleveland, Ohio . The lighting division has since remained in

3255-399: The 9HA. After the break, GE developed new protective coatings and heat treatment methods. Gas turbines represent a significant portion of GE Power's revenue, and also represent a significant portion of the power generation fleet of several utility companies in the United States. Chubu Electric of Japan and Électricité de France also had units that were impacted. Initially, GE did not realize

3348-521: The Appending Process. In this mode the processor can execute all instructions and is able to inhibit interrupts while doing so. Like in Slave mode the default form of address formation is via the Appending Process. All instructions can be executed in this mode and full access is given to any privileged features of the hardware. Interrupts can be inhibited and instruction fetching is limited to

3441-476: The B-core bank did not. Project MAC formally began with signing of contract with ARPA on the 1st of July 1963. By October 1963 they had received a dedicated 7094 to run CTSS under, this was termed the "Red Machine" due to it having red side panels. This would provide a time-sharing environment for Project MAC, and would subsequently be heavily used for the development of Multics. During this period exploratory work

3534-484: The COVID-19 pandemic caused General Electric's revenue to fall significantly in 2020, GE's final CEO Larry Culp announced in November 2021 that General Electric was to be broken up into three separate, public companies— GE Aerospace , GE HealthCare , and GE Vernova —by 2024. The new companies are respectively focused on aerospace, healthcare, and energy. GE HealthCare's spin-off was finalized on January 4, 2023. This

3627-650: The Computation Center's IBM 709, and in November 1961, Fernando J. Corbató demonstrated at MIT what was called the Experimental Time-Sharing System . On May 3, 1962, F. J. Corbató, M. M. Daggett and R. C. Daley published a paper about that system at the Spring Joint Computer Conference . Robert C. Daley, Peter R. Bos and at least 6 other programmers implemented the operating system, partly based on

3720-461: The DOTSYS braille translation software ran on CTSS and could output to a BRAILLEMBOSS braille page printer. DOTSYS on CTSS was first demonstrated on August 18, 1966, as part of a feasibility study where teletypesetter tape, in the form of news, was converted to Grade 2 Braille. The following month the feasibility of converting textbook information on teletypesetter tape to error-free Grade 2 Braille

3813-656: The Denver television station until in 1986, when General Electric bought out RCA and made it into an owned-and-operated station by NBC . It even stayed on until 1995 when it was transferred to a joint venture between CBS and Group W in a swap deal, alongside KUTV in Salt Lake City for longtime CBS O&O in Philadelphia, WCAU-TV . Stations are arranged in alphabetical order by state and city of license . Led by Sanford Alexander Moss , GE moved into

GE 645 - Misplaced Pages Continue

3906-687: The EMU and is made up of 80 words, of which 64 words are data and the remaining 16 were used as a guard band. The average transfer rate between the EMU and memory was 470,000 words per second, all transfers were 72-bits (two words) wide, with it taking 6.7μs to transfer 4 words. The unit had a rotational speed of 1,725 rpm, which ensured an average latency of 17.4 milliseconds. Total Capacity (Words) 128K 256K 1024K Total capacity (Words) 4096K 4096K 4096K for remote terminals such as such as DATANET-760 / GE-115 The GE-645 has two modes of Instruction Execution (Master and Slave) inherited from

3999-625: The GE-635, however it also adds another dimension by having two modes of memory addressing (Absolute and Appending). When the process is executing in Absolute Mode addressing is limited to 2 words of memory and any instructions are executed in Master mode. In comparison Append Mode calculates the address using "Appending Words" with an address space of 2 words and with instruction execution occurring in either Master or Slave modes. By default this

4092-557: The NSA and similar governmental sites. Their usage was limited by the extreme security measures and had limited impact on subsequent systems, other than the protection ring. The hardware protection introduced on this computer and modified on the 6180 was later implemented in the Intel 286 computer processor as a four-layer protection ring, but four rings was found to be too cumbersome to program and too slow to operate. Protection ring architecture

4185-529: The U.S. Army Air Corps to select GE to develop the nation's first jet engine during the war. This experience, in turn, made GE a natural selection to develop the Whittle W.1 jet engine that was demonstrated in the United States in 1941. GE was ranked ninth among United States corporations in the value of wartime production contracts. However, their early work with Whittle's designs was later handed to Allison Engine Company . GE Aviation then emerged as one of

4278-520: The U.S. and Canada. The exact terms of the sale were not disclosed, but the final price would be based on the value of the assets at closing, plus a premium according to the parties. In October 2015, activist investor Nelson Peltz 's fund Trian bought a $ 2.5 billion stake in the company. In January 2016, Haier acquired GE's appliance division for $ 5.4 billion. In October 2016, GE Renewable Energy agreed to pay €1.5 billion to Doughty Hanson & Co for LM Wind Power during 2017. At

4371-443: The acquisition of Hydril Pressure & Control in 2008 for $ 1.1 billion. GE Plastics was sold in 2008 to SABIC (Saudi Arabia Basic Industries Corporation). In May 2008, GE announced it was exploring options for divesting the bulk of its consumer and industrial business. On December 3, 2009, it was announced that NBCUniversal would become a joint venture between GE and cable television operator Comcast . Comcast would hold

4464-459: The acquisition of privately held Lineage Power Holdings from The Gores Group . In April 2011, GE announced it had completed its purchase of John Wood plc's Well Support Division for $ 2.8 billion. In 2011, GE Capital sold its $ 2 billion Mexican assets to Santander for $ 162 million and exited the business in Mexico. Santander additionally assumed the portfolio debts of GE Capital in

4557-800: The company expanded into cable with the launch of a franchise, which was awarded to a non-exclusive franchise in Schenectady through subsidiary General Electric Cablevision Corporation. On February 15, 1965, General Electric expanded its holdings in order to acquire more television stations to meet the maximum limit of the FCC, and more cable holdings through subsidiaries General Electric Broadcasting Company and General Electric Cablevision Corporation. The company also owned television stations such as KOA-TV (now KCNC-TV ) in Denver and WSIX-TV (later WNGE-TV, now WKRN ) in Nashville, but like WRGB, General Electric sold off most of its broadcasting holdings, but held on to

4650-404: The company was renamed back to Baker Hughes. In May 2017, GE had signed $ 15 billion of business deals with Saudi Arabia . Saudi Arabia is one of GE's largest customers. In September 2017, GE announced the sale of its Industrial Solutions Business to ABB . The deal closed on June 30, 2018. On August 15, 2019, Harry Markopolos , a financial fraud investigator known for his discovery of

4743-630: The company's longtime stake in television and film media. In April 2013, GE acquired oilfield pump maker Lufkin Industries for $ 2.98 billion. In April 2014, it was announced that GE was in talks to acquire the global power division of French engineering group Alstom for a figure of around $ 13 billion. A rival joint bid was submitted in June 2014 by Siemens and Mitsubishi Heavy Industries (MHI) with Siemens seeking to acquire Alstom's gas turbine business for €3.9 billion, and MHI proposing

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4836-531: The country. Following this, GE Capital focused on its core business and shed its non-core assets. In June 2012, CEO and President of GE Jeff Immelt said that the company would invest ₹ 3 billion to accelerate its businesses in Karnataka . In October 2012, GE acquired $ 7 billion worth of bank deposits from MetLife Inc . On March 19, 2013, Comcast bought GE's shares in NBCU for $ 16.7 billion, ending

4929-520: The deal was completed or to the public via an IPO if the deal was not completed. On March 1, 2010, GE announced plans to sell its 20.85% stake in Turkey-based Garanti Bank. In August 2010, GE Healthcare signed a strategic partnership to bring cardiovascular Computed Tomography (CT) technology from start-up Arineta Ltd. of Israel to the hospital market. In October 2010, GE acquired gas engines manufacturer Dresser Industries in

5022-570: The design of the Titan Supervisor was inspired by that. Dennis Ritchie wrote in 1977 that UNIX could be seen as a "modern implementation" of CTSS. Multics, which was also developed by Project MAC, was started in the 1960s as a successor to CTSS – and in turn inspired the development of Unix in 1969. One of the technical terms inherited by these systems from CTSS is daemon . Incompatible Timesharing System (ITS), another early, revolutionary, and influential MIT time-sharing system,

5115-426: The end of October 2016, it was announced that GE was under negotiations for a deal valued at about $ 30 billion to combine GE Oil & Gas with Baker Hughes . The transaction would create a publicly traded entity controlled by GE. It was announced that GE Oil & Gas would sell off its water treatment business, GE Water & Process Technologies, as part of its divestment agreement with Baker Hughes. The deal

5208-637: The firm looked to trim down on its holdings and rid itself of its image of a "hybrid" company, working in both banking and manufacturing. In August 2015, GE Capital agreed to sell its Healthcare Financial Services business to Capital One for US$ 9 billion. The transaction involved US$ 8.5 billion of loans made to a wide array of sectors, including senior housing, hospitals, medical offices, outpatient services, pharmaceuticals, and medical devices. Also in August 2015, GE Capital agreed to sell GE Capital Bank's on-line deposit platform to Goldman Sachs . Terms of

5301-574: The following odd-numbered abr were paired. When writing in Assembly (EPLBSA/ALM) the standard Multics practice was to label these registers as follows: The naming scheme is based around the following: The 8 pointer registers in the Honeywell 6180 and its successors served the same purpose as the 4 paired base registers in the GE-645, referring to an offset within a segment. CTSS had originated in

5394-536: The form of the 645F (F for follow-on) wasn't completed by the time the division was sold to Honeywell , and became known as the Honeywell 6180 . The original access control mechanism of the GE/Honeywell 645 were found inadequate for high speed trapping of access instructions and the re-implementation in the 6180 solved those problems. The bulk of these computers running time-sharing on Multics were installed at

5487-506: The initial version of the Compatible Time-Sharing System. This was apparently the first ever public demonstration of time-sharing ; there are other claims, but they refer to special-purpose systems, or with no known papers published. The "compatibility" of CTSS was with background jobs run on the same computer, which generally used more of the compute resources than the time-sharing functions. The first version of

5580-401: The internal abr containing an offset within the segment specified by the external abr. If an instruction or an indirect word refers to an external abr, the address field in the instruction or indirect word is used as an offset in the segment specified by the external abr. If it refers to an internal abr, the address field in the instruction or indirect word is added to the offset in the abr, and

5673-502: The largest user of computers outside the United States federal government , aside from being the first business in the world to own a computer. Its major appliance manufacturing plant " Appliance Park " was the first non-governmental site to host one. However, in 1970, GE sold its computer division to Honeywell , exiting the computer manufacturing industry, though it retained its timesharing operations for some years afterward. GE

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5766-424: The mode of the file. Files could also be symbolically linked between directories. A directory listing by listf : Input-output hardware was mostly standard IBM peripherals . These included six data channels connecting to: CTSS was described in a paper presented at the 1962 Spring Joint Computer Conference , and greatly influenced the design of other early time-sharing systems. Maurice Wilkes witnessed CTSS and

5859-452: The new field of aircraft turbo superchargers . This technology also led to the development of industrial gas turbine engines used for power production. GE introduced the first set of superchargers during World War I and continued to develop them during the interwar period . Superchargers became indispensable in the years immediately before World War II. GE supplied 300,000 turbo superchargers for use in fighter and bomber engines. This work led

5952-550: The original components of GE. Also in 1986, Kidder, Peabody & Co. , a U.S.-based securities firm, was sold to GE and following heavy losses was sold to PaineWebber in 1994. In 1997, Genpact was founded as a unit of General Electric in Gurgaon . The company was founded as GE Capital International Services (GECIS).  In the beginning, GECIS created processes for outsourcing back-office activities for GE Capital such as processing car loans and credit card transactions. It

6045-557: The parent of Universal Pictures from Vivendi . Vivendi bought 20% of NBC, forming the company NBCUniversal . GE then owned 80% of NBCUniversal and Vivendi owned 20%. In 2004, GE completed the spin-off of most of its mortgage and life insurance assets into an independent company, Genworth Financial , based in Richmond, Virginia . In May 2007, GE acquired Smiths Aerospace for $ 4.8 billion. Also in 2007, GE Oil & Gas acquired Vetco Gray for $ 1.9 billion, followed by

6138-455: The period from 1967 to 1975. The basic system configuration consisted of a combination of 4 basic modules these were: The System Controller Modules (SCM) effectively acted as the heart of the system. These were passive devices which was connected to each active device (Processor, GIOC, EMU) and provided the following: Compared to the rest of the 600 series the 645 did not use the standard IOC's (input/output controllers) for I/O. Nor did it use

6231-430: The process of placing a 1 in bit 29 of the executed instruction. Effective addresses are thus either added to a base address, or the offset is linked to the base address. The 645 processor was divided into four major functional units these were: One of the key differences from the GE 635 was the addition of "appending unit" (APU) which was used to implement a hybrid "Paged Segmentation" model of virtual memory . The APU

6324-652: The red machine was moved to the Information Processing Center and operated until July 20, 1973. CTSS ran on only those two machines; however, there were remote CTSS users outside of MIT including ones in California, South America, the University of Edinburgh and the University of Oxford . John Backus said in the 1954 summer session at MIT that "By time sharing, a big computer could be used as several small ones; there would need to be

6417-516: The remedies proposed by GE were insufficient to resolve the competition concerns resulting from the proposed acquisition of Honeywell". On June 27, 2014, GE partnered with collaborative design company Quirky to announce its connected LED bulb called Link. The Link bulb is designed to communicate with smartphones and tablets using a mobile app called Wink . In December 1985, GE reacquired the RCA Corporation , primarily to gain ownership of

6510-407: The resulting value is used as an offset in the segment specified by the external abr with which the internal abr is paired. The registers have the following formats depending on how bit 21 is set. Format as an "external" base, with bit 21 set: Format as a component to the effective "internal" address with a pointer to an "external" base, with bit 21 clear: In Multics, an even-numbered abr and

6603-712: The same location. Owen D. Young, who was then GE's general counsel and vice president, through GE, founded the Radio Corporation of America (RCA) in 1919. This came after Young, while working with senior naval officers, purchased the Marconi Wireless Telegraph Company of America , which was a subsidiary of the British company Marconi Wireless and Signal Company. He aimed to expand international radio communications. GE used RCA as its retail arm for radio sales. In 1926, RCA co-founded

6696-457: The supervisor (operating system). The input from the consoles was written to the buffers in the supervisor, by interrupts , and when a return character was received, the control was given to the supervisor, which dumped the running code to the tape and decided what to run next. The console commands implemented at the time were login, logout, input, edit, fap, mad, madtrn, load, use, start, skippm, listf, printf, xdump and xundump . This became

6789-516: The time, and GE increased engineering and supplies for the Wind Division and doubled the annual sales to $ 1.2 billion in 2003. It acquired ScanWind in 2009. In 2018, GE Power garnered press attention when a model 7HA gas turbine in Texas was shut down for two months due to the break of a turbine blade . This model uses similar blade technology to GE's newest and most efficient model,

6882-596: The transaction were not disclosed, but the sale included US$ 8 billion of on-line deposits and another US$ 8 billion of brokered certificates of deposit. The sale was part of GE's strategic plan to exit the U.S. banking sector and to free itself from tightening banking regulations. GE also aimed to shed its status as a "systematically important financial institution". In September 2015, GE Capital agreed to sell its transportation finance unit to Canada's Bank of Montreal . The unit sold had US$ 8.7 billion (CA$ 11.5 billion) of assets, 600 employees, and 15 offices in

6975-504: The turbine blade issue of the 9FB unit would impact the new HA units. GE was one of the eight major computer companies of the 1960s along with IBM , Burroughs , NCR , Control Data Corporation , Honeywell , RCA , and UNIVAC . GE had a line of general purpose and special purpose computers, including the GE 200 , GE 400 , and GE 600 series general-purpose computers, the GE/PAC 4000 series real-time process control computers, and

7068-461: The world's largest engine manufacturers, bypassing the British company Rolls-Royce plc . Some consumers boycotted GE light bulbs, refrigerators, and other products during the 1980s and 1990s. The purpose of the boycott was to protest against GE's role in nuclear weapons production. In 2002, GE acquired the wind power assets of Enron during its bankruptcy proceedings. Enron Wind was the only surviving U.S. manufacturer of large wind turbines at

7161-414: Was 24-bits wide consisting of 18 bits for an address and 6 bits for control functions. One bit of the control functions field indicates where an abr is "internal" or "external". If an abr is internal, another 3-bit subfield of the control functions field specifies another abr with which this abr is paired; that other abr is external, with the external abr containing a segment number in the address field and

7254-606: Was a major provider of computer time-sharing services through General Electric Information Services (GEIS, now GXS), offering online computing services that included GEnie . In 2000, when United Technologies Corp. planned to buy Honeywell, GE made a counter-offer that was approved by Honeywell. On July 3, 2001, the European Union issued a statement that "prohibit the proposed acquisition by General Electric Co. of Honeywell Inc.". The reasons given were it "would create or strengthen dominant positions on several markets and that

7347-616: Was also used to implement a single-level store which is one of the fundamental abstraction that Multics is built around. The instruction format was also extended with the previously unused bit 29 controlling whether the operand address of an instruction used an 18-bit format (bit 29 = 0) or one that was made up of a 3-bit Base Register address with a 15-bit offset (bit 29 = 1). The instruction format with bit 29 set to 1 is: The GE 645 had 8 Address Base Registers (abr's), these could operate in either "paired" or "unpaired" modes. The later Honeywell 6180 changed these to 8 pointer registers. Each abr

7440-602: Was an experimental concept at the time and the beginning of the business process outsourcing (BPO) industry. GE sold 60% stake in Genpact to General Atlantic and Oak Hill Capital Partners in 2005 and hived off Genpact into an independent business. GE is still a major client to Genpact today for services in customer service, finance, information technology, and analytics. In 2001, GE acquired Spanish-language broadcaster Telemundo and incorporated it into NBC. In 2002, Francisco Partners and Norwest Venture Partners acquired

7533-407: Was carried out into what a replacement for CTSS would look like and what type of hardware it would require to run on. A committee was formed consisting of Fernando J. Corbató , Ted Glaser, Jack Dennis and Robert Graham with responsibility to visit computer manufacturers to gauge level of interest in the industry to tender for the hardware platform. It was made clear that Project MAC was looking for

7626-666: Was cleared by the EU in May 2017, and by the United States Department of Justice in June 2017. The merger agreement was approved by shareholders at the end of June 2017. On July 3, 2017, the transaction was completed, and Baker Hughes became a GE company and was renamed Baker Hughes, a GE Company (BHGE). In November 2018, GE reduced its stake in Baker Hughes to 50.4%. On October 18, 2019, GE reduced its stake to 36.8% and

7719-563: Was expected to be completed in 2015. In October 2014, GE announced it was considering the sale of its Polish banking business Bank BPH . Later in 2014, General Electric announced plans to open its global operations center in Cincinnati , Ohio. The Global Operations Center opened in October 2016 as home to GE's multifunctional shared services organization. It supports the company's finance/accounting, human resources, information technology, supply chain, legal and commercial operations, and

7812-608: Was fired from GE in 1958 by Ralph J. Cordiner for overstepping his bounds and successfully gaining the ERMA contract. Cordiner was strongly against GE entering the computer business because he did not see the potential in it. In 1962, GE started developing its GECOS (later renamed GCOS) operating system , originally for batch processing , but later extended to time-sharing and transaction processing . Versions of GCOS are still in use today. From 1964 to 1969, GE and Bell Laboratories (which soon dropped out) joined with MIT to develop

7905-529: Was followed by the spin-off of GE's portfolio of energy businesses on April 2, 2024, into GE Vernova. Following these transactions, General Electric Company changed its trading name to GE Aerospace, pivoted to aviation, and ceased to exist as a conglomerate. During 1889, Thomas Edison (1847–1931) had business interests in many electricity-related companies, including Edison Lamp Company, a lamp manufacturer in East Newark, New Jersey ; Edison Machine Works ,

7998-663: Was incorporated in New York on April 24, 1889. The new company acquired Sprague Electric Railway & Motor Company in the same year. The consolidation did not involve all of the companies established by Edison; notably, the Edison Illuminating Company , which would later become Consolidated Edison , was not part of the merger. In 1880, Gerald Waldo Hart formed the American Electric Company of New Britain, Connecticut , which merged

8091-457: Was incorporated in New York, with the Schenectady plant used as headquarters for many years thereafter. Around the same time, General Electric's Canadian counterpart, Canadian General Electric , was formed. In 1893, General Electric bought the business of Rudolf Eickemeyer in Yonkers, New York , along with all of its patents and designs. Eickemeyer's firm had developed transformers for use in

8184-455: Was produced by people who disagreed with the direction taken by CTSS, and later, Multics; the name was a parody of "CTSS", as later the name "Unix" was a parody of "Multics". CTSS and ITS file systems have a number of design elements in common. Both have an M.F.D. (master file directory) and one or more U.F.D. (user file directories). Neither of them have nested directories (sub-directories). Both have file names consisting of two names which are

8277-411: Was reserved for the time-sharing supervisory program, the other for user programs. CTSS had a protected-mode kernel; the supervisor's functions in the A-core (memory bank A) could be called only by software interrupts, as in modern operating systems. Causing memory-protection interrupts were used for software interrupts. Processor allocation scheduling with a quantum time unit 200 ms, was controlled by

8370-433: Was said to be the first broadcast to the public in the United States on GE's W2XAD : the pictures were picked up on 1.5 square inches (9.7 square centimeters) screens in the homes of four GE executives. The sound was broadcast on GE's WGY (AM) . Experimental television station W2XAD evolved into the station WRGB , which, along with WGY and WGFM (now WRVE ), was owned and operated by General Electric until 1983. In 1965,

8463-574: Was successfully demonstrated. As MIT CTSS was an academic system, a research vehicle and not a system for commercial computing, two years later a version of DOTSYS stripped of CTSS dependencies for software portability was used on an IBM 709 at the American Printing House for the Blind to print the first braille edition of a book produced from teletypesetter input, only a few weeks after the ink-print version. The following year, on CTSS,

8556-404: Was the first general purpose time-sharing operating system . Compatible Time Sharing referred to time sharing which was compatible with batch processing ; it could offer both time sharing and batch processing concurrently. CTSS was developed at the MIT Computation Center ("Comp Center"). CTSS was first demonstrated on MIT's modified IBM 709 in November 1961. The hardware was replaced with

8649-484: Was used to develop and test concepts for library automation. A deployment of three BRISC CRT consoles for testing at the MIT Engineering Library showed that it was preferred over two other systems, ARDS and DATEL. CTSS used a modified IBM 7090 mainframe computer that had two 32,768 (32K) 36-bit- word banks of core memory instead of the default configuration which provides only one. One bank

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