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Wescom Switching
Wescom Switching Incorporated was a designer and manufacturer of digital telecommunication products such as private branch exchanges (PBXs) from 1974 until its sale (along with Wescom Inc.) to Rockwell International in 1980. Rockwell continued the development and marketing of the 580 product line until the 580 technology was sold to Ditran in 1982. History Clinton Penny (1917–1998) founded Wescom in 1965 and served as its president. It was headquartered in Downers Grove, Illinois. Wescom had a major presence in the T1 transmission industry at the time, and also was marketing the 501 Analog PBX. Sam Pitroda hired on at Wescom Inc around 1974, and developed some early digital switching technology. The '580" name represented the 5 functional areas or frames of the original "Large PBX (lpbx)" design. They were the Line, Trunk, Network, Service and Control frames. The "80" represented the 1980s decade which was quickly approaching while Wescom was developing its first commercial dig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Private Branch Exchange
A business telephone system is a multiline telephone system typically used in business environments, encompassing systems ranging in technology from the key telephone system (KTS) to the private branch exchange (PBX). A business telephone system differs from an installation of several telephones with multiple central office (CO) lines in that the CO lines used are directly controllable in key telephone systems from multiple telephone stations, and that such a system often provides additional features related to call handling. Business telephone systems are often broadly classified into key telephone systems, and private branch exchanges, but many hybrid systems exist. A key telephone system was originally distinguished from a private branch exchange in that it did not require an operator or attendant at the switchboard to establish connections between the central office trunks and stations, or between stations. Technologically, private branch exchanges share lineage with centra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rockwell International
Rockwell International was a major American manufacturing conglomerate involved in aircraft, the space industry, defense and commercial electronics, components in the automotive industry, printing presses, avionics and industrial products. Rockwell International's predecessor was Rockwell Manufacturing Company, founded in 1919 by Willard Rockwell. In 1968, Rockwell Manufacturing Company included 7 operating divisions manufacturing industrial valves, German 2-cycle motors, power tools, gas and water meters. In 1973, it was combined with the aerospace products and renamed Rockwell International. At its peak, Rockwell International was No. 27 on the Fortune 500 list, with assets of over $8 billion, sales of $27 billion and 115,000 employees. History Rockwell Manufacturing Company Boston-born Willard Rockwell (1888–1978) made his fortune with the invention and successful launch of a new bearing system for truck axles in 1919. He merged his Oshkosh, Wisconsin-base ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Downers Grove, Illinois
Downers Grove is a village in DuPage County, Illinois, United States. It was founded in 1832 by Pierce Downer, whose surname serves as the eponym for the village. It is a south-west suburb of Chicago. The village is located between I-88 and I-55. History Downers Grove was founded in 1832 by Pierce Downer, a farmer who traveled to Illinois from Rutland, New York, but was originally from Vermont. Its other early settlers included the Blodgett, Curtiss, Blanchard, Stanley, Lyman, and Carpenter families. The original settlers were mostly migrants from the Northeastern United States and Northern Europe. The first schoolhouse was built in 1844. The Chicago, Burlington and Quincy Railroad was extended from Aurora to Chicago through Downers Grove in 1864, boosting its population. The town was incorporated in March 1873. Its somewhat unusual spelling ("Apostrophe-free since 1873") remains a minor historical mystery. In April 1947, the wreck of a Burlington Railroad ''Twin Cities Zephyr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago Tribune
The ''Chicago Tribune'' is a daily newspaper based in Chicago, Illinois, United States, owned by Tribune Publishing. Founded in 1847, and formerly self-styled as the "World's Greatest Newspaper" (a slogan for which WGN radio and television are named), it remains the most-read daily newspaper in the Chicago metropolitan area and the Great Lakes region. It had the sixth-highest circulation for American newspapers in 2017. In the 1850s, under Joseph Medill, the ''Chicago Tribune'' became closely associated with the Illinois politician Abraham Lincoln, and the Republican Party's progressive wing. In the 20th century under Medill's grandson, Robert R. McCormick, it achieved a reputation as a crusading paper with a decidedly more American-conservative anti-New Deal outlook, and its writing reached other markets through family and corporate relationships at the ''New York Daily News'' and the ''Washington Times-Herald.'' The 1960s saw its corporate parent owner, Tribune Company, rea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sam Pitroda
Satyanarayan Gangaram Pitroda also known as Sam Pitrod) is an Indian inventor, telecommunication engineer and entrepreneur. He was born in Titlagarh in the eastern Indian state of Odisha to a Gujarati people, Gujarati family. He is popularly known as the Father of India's Computer and IT Revolution as he helped in bringing computerization. He was also an advisor to the PM during Manmohan Singh, Dr. Manmohan Singh's tenure. Early life Pitroda was born in Titlagarh, Odisha, India to Gujarati people, Gujarati parents. He had seven siblings and is third oldest among them. The family was deeply influenced by Mahatma Gandhi and his philosophy. Consequently, Pitroda and his brother were sent to Gujarat to imbibe Gandhian philosophy. He completed his schooling from Vallabh Vidyanagar in Gujarat and completed his master's degree in physics and electronics from Maharaja Sayajirao University in Vadodara. After completing his master's degree in physics, he went to the United States in 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dataquest
''Dataquest'' is an Indian magazine focused on information technology related articles. The magazine is published monthly by Cyber Media India Ltd, South Asia South Asia is the southern subregion of Asia, which is defined in both geographical and ethno-cultural terms. The region consists of the countries of Afghanistan, Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan, and Sri Lanka.;;;;;;;; ...'s largest specialty media group. It was one of the first publications to champion energy/green issues and the application of IT in governance. History and profile ''Dataquest Magazine'' started as an industry publication in 1982 to address the information needs of the then nascent IT industry in India. In the 1990s, it strengthened that position while broadening its coverage to include technology policies, markets and resellers. Between 2008 and 2011, the magazine transformed itself to a complete publication on IT targeting the enterprise IT users such as CIOs and IT manage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intel 8080
The Intel 8080 (''"eighty-eighty"'') is the second 8-bit microprocessor designed and manufactured by Intel. It first appeared in April 1974 and is an extended and enhanced variant of the earlier 8008 design, although without binary compatibility.'' Electronic News'' was a weekly trade newspaper. The same advertisement appeared in the May 2, 1974 issue of ''Electronics'' magazine. The initial specified clock rate or frequency limit was 2 MHz, with common instructions using 4, 5, 7, 10, or 11 cycles. As a result, the processor is able to execute several hundred thousand instructions per second. Two faster variants, the 8080A-1 (sometimes referred to as the 8080B) and 8080A-2, became available later with clock frequency limits of 3.125 MHz and 2.63 MHz respectively. The 8080 needs two support chips to function in most applications: the i8224 clock generator/driver and the i8228 bus controller. It is implemented in N-type metal-oxide-semiconductor logic (NMOS) usin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Time-division Multiplexing
Time-division multiplexing (TDM) is a method of transmitting and receiving independent signals over a common signal path by means of synchronized switches at each end of the transmission line so that each signal appears on the line only a fraction of time in an alternating pattern. This method transmits two or more digital signals or analog signals over a common channel. It can be used when the bit rate of the transmission medium exceeds that of the signal to be transmitted. This form of signal multiplexing was developed in telecommunications for telegraphy systems in the late 19th century, but found its most common application in digital telephony in the second half of the 20th century. History Time-division multiplexing was first developed for applications in telegraphy to route multiple transmissions simultaneously over a single transmission line. In the 1870s, Émile Baudot developed a time-multiplexing system of multiple Hughes telegraph machines. In 1944, the Britis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automatic Call Distributor
An automated call distribution system, commonly known as automatic call distributor (ACD), is a telephony device that answers and distributes incoming calls to a specific group of terminals or agents within an organization. ACDs direct calls based on parameters that may include the caller's telephone number, the number they dialed, the time of day or a response to an automated voice prompt. Advanced ACD systems may use digital technologies such as Computer telephony integration (CTI), computer-supported telecommunications applications (CSTA) or IVR as input to determine the route to a person or voice announcement that will serve the caller. Experts claim that "the invention of ACD technology made the concept of a call centre possible." Background A Private Branch Exchange (PBX) is a telephone exchange device that acts as a switchboard to route phone calls within an organisation. This technology developed into Automated Call Distribution systems using computer technology to automat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frontier Airlines
Frontier Airlines is a major ultra-low-cost U.S. airline headquartered in Denver, Colorado. It operates flights to over 100 destinations throughout the United States and 31 international destinations, and employs more than 3,000 staff. The carrier is a subsidiary and operating brand of Indigo Partners, LLC, and maintains a hub at Denver International Airport with numerous focus cities across the US. History 1990s Frontier Airlines was created by Frederick W. "Rick" Brown (a United Airlines pilot), his wife Janice Brown, and Bob Schulman, the latter two having worked at the original Frontier Airlines (1950–1986). In 1993, Continental Airlines was scaling back flights from Denver's Stapleton International Airport, and the three proposed a charter airline named AeroDenver Travel Services to fill demand on international routes, potentially in partnership with Condor Airlines. To run the company, they brought in M.C. "Hank" Lund (ex-CEO of the original Frontier Airlines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Carrier
A common carrier in common law countries (corresponding to a public carrier in some civil law systems,Encyclopædia Britannica CD 2000 "Civil-law public carrier" from "carriage of goods" usually called simply a ''carrier'') is a person or company that transports goods or people for any person or company and is responsible for any possible loss of the goods during transport.Longman Business English Dictionary A common carrier offers its services to the general public under license or authority provided by a regulatory body, which has usually been granted "ministerial authority" by the legislation that created it. The regulatory body may create, interpret, and enforce its regulations upon the common carrier (subject to judicial review) with independence and finality as long as it acts within the bounds of the enabling legislation. A common carrier (also called a ''public carrier'' in British English) is distinguished from a contract carrier, which is a carrier that transports goo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public-safety Answering Point
A public-safety answering point (PSAP), sometimes called public-safety access point, is a call center where emergency/non-emergency calls (like police, fire brigade, ambulance) initiated by any mobile or landline subscriber are terminated. It can also happen that when 112 is dialed in then a logic is implemented by mobile or network operators to route the call to the nearest police station. It is a call center in almost all the countries including Canada and the United States responsible for answering calls to an emergency telephone number for police, firefighting, and ambulance services. Trained telephone operators are also usually responsible for dispatching these emergency services. Most PSAPs are now capable of caller location for landline calls, and many can handle mobile phone locations as well (sometimes referred to as phase II location), where the mobile phone company has a handset to location system. Some can also use voice broadcasting where outgoing voice mail can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
