A disk operating system (DOS) is a computer operating system that resides on and can use a disk storage device, such as a floppy disk, hard disk drive, or optical disc. A disk operating system provides a file system for organizing, reading, and writing files on the storage disk, and a means for loading and running programs stored on that disk. Strictly speaking, this definition does not include any other functionality, so it does not apply to more complex OSes, such as Microsoft Windows, and is more appropriately used only for older generations of operating systems.
A mainframe computer, informally called a mainframe or big iron, is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterprise resource planning, and large-scale transaction processing. A mainframe computer is large but not as large as a supercomputer and has more processing power than some other classes of computers, such as minicomputers, servers, workstations, and personal computers. Most large-scale computer-system architectures were established in the 1960s, but they continue to evolve. Mainframe computers are often used as servers.
Computer operating systems (OSes) provide a set of functions needed and used by most application programs on a computer, and the links needed to control and synchronize computer hardware. On the first computers, with no operating system, every program needed the full hardware specification to run correctly and perform standard tasks, and its own drivers for peripheral devices like printers and punched paper card readers. The growing complexity of hardware and application programs eventually made operating systems a necessity for everyday use.
UNIVAC was a line of electronic digital stored-program computers starting with the products of the Eckert–Mauchly Computer Corporation. Later the name was applied to a division of the Remington Rand company and successor organizations.
Barrie is a city in Central Ontario, Canada, about 90 kilometres (56 mi) north of Toronto. The city is within Simcoe County and located along the shores of Kempenfelt Bay. Although it is physically in the county, Barrie is politically independent. The city is part of the extended urban area in southern Ontario known as the Greater Golden Horseshoe. As of the 2021 census, the city's population was 147,829, while the census metropolitan area had a population of 212,667 residents.
Peterborough is a city on the Otonabee River in Ontario, Canada, about 125 kilometres northeast of Toronto. According to the 2021 Census, the population of the City of Peterborough was 83,651. The population of the Peterborough Census Metropolitan Area (CMA), which includes the surrounding Townships of Selwyn, Cavan Monaghan, Otonabee-South Monaghan, and Douro-Dummer, was 128,624 in 2021. In 2021, Peterborough ranked 32nd among the country's 41 census metropolitan areas according to the CMA in Canada. The current mayor of Peterborough is Jeff Leal.
The MCM/70 is a pioneering microcomputer first built in 1973 in Toronto, Ontario, Canada and released the next year. This makes it one of the first microcomputers in the world, the second to be shipped in completed form, and the first portable computer. The MCM/70 was the product of Micro Computer Machines, one of three related companies set up in Toronto in 1971 by Mers Kutt. It is considered by some historians to be the first usable personal microcomputer system.
Simcoe County is located in the central portion of Southern Ontario, Canada. The county is just north of the Greater Toronto Area, stretching from the shores of Lake Simcoe in the east to Georgian Bay in the west. Its most populated city is Barrie. Simcoe County forms part of the Greater Golden Horseshoe area, a densely populated and industrialized region, centred on the Greater Toronto Area.
The Dartmouth Time-Sharing System (DTSS) is a discontinued operating system first developed at Dartmouth College between 1963 and 1964. It was the first successful large-scale time-sharing system to be implemented, and was also the system for which the BASIC language was developed. DTSS was developed continually over the next decade, reimplemented on several generations of computers, and finally shut down in 1999.
Woburn Collegiate Institute is a semestered, English-language public secondary school on Ellesmere Road in the Woburn neighbourhood of the Scarborough district of Toronto, Ontario, Canada operated by the Toronto District School Board. From its inception in 1963 until 1998, it was operated by the Scarborough Board of Education.
Eastwood Collegiate Institute is a public high school in Kitchener, Ontario, Canada. It was established in 1956. The school teams are known as the "Lions". Eastwood is known for its Provincially ranked soccer teams, as well as its Integrated Arts Program. Its motto is Ex Oriente Lux.
White Oaks Secondary School (WOSS) is a secondary school located in Oakville, Ontario, Canada.
Since the rise of the personal computer in the 1980s, IBM and other vendors have created PC-based IBM mainframe-compatible systems which are compatible with the larger IBM mainframe computers. For a period of time PC-based mainframe-compatible systems had a lower price and did not require as much electricity or floor space. However, they sacrificed performance and were not as dependable as mainframe-class hardware. These products have been popular with mainframe developers, in education and training settings, for very small companies with non-critical processing, and in certain disaster relief roles.
Dr. Norman Bethune Collegiate Institute is a high school in Toronto, Ontario, Canada. It is located in the Steeles neighbourhood of the former suburb of Scarborough. It was founded in 1979 and named after Norman Bethune, a Canadian doctor and communist who served under the Eighth Route Army. The school is attended by over 1000 students, most of whom speak a primary language other than English, the language of instruction. Bethune is also partners with the neighbouring senior's homes: Mon Sheong and Tendercare, and with Beijing#15 High School in Beijing, People's Republic of China.
GXS is a subsidiary of OpenText Corporation headquartered in Gaithersburg, Maryland, United States. Its GXS Trading Grid managed more than twelve billion transactions in 2011. Since 2004, GXS has invested more than $250 million in GXS Trading Grid. As of March 16, 2012, more than 550,000 businesses connect to GXS Trading Grid and, on average, more than 2,000 new businesses join each month.
Barrie Central Collegiate Institute was a public secondary school located in Barrie, Ontario, Canada. It was the oldest secondary school in Simcoe County. The school provided a variety of curricular and extracurricular activities, including rugby teams, classics club, and Sears Drama Festival. Barrie Central was also one of two schools in Simcoe County that offered an Extended French program.
Barrie North Collegiate Institute is a public secondary school located in Barrie, Ontario, Canada. It was established in 1957 as part of the Simcoe County District School Board in southern Ontario. The principal is Kimberlee Hand.
MONECS was a computer operating system with BASIC, COBOL, FORTRAN, Pascal interpreters, plus machine language facility. Specifically designed for computer science education in Australian secondary schools and at the university undergraduate level. Alternative designations were DEAMON or SCUBA systems.
St. Thomas Aquinas or STA is a catholic secondary school in Bramalea, Brampton, Ontario. And is under Dufferin-Peel Catholic District School Board. The school's principal is Peter Petruccelli.
The Elea was a series of mainframe computers Olivetti developed starting in the late 1950s. The system, made entirely with transistors for high performance, was conceived, designed and developed by a small group of researchers led by Mario Tchou (1924–1961), with industrial design by Ettore Sottsass. The ELEA 9001 was the first solid-state computer designed and manufactured in Italy. The acronym ELEA stood for Elaboratore Elettronico Aritmetico and was chosen with reference to the ancient Greek colony of Elea, home of the Eleatic school of philosophy. About forty units were placed with customers. In August 1964, only a few years after releasing the 9003, Olivetti's mainframe business was sold to GE.
