Information: - In computing , a device driver ( commonly referred to as a driver ) is a computer program that operates or controls a particular type of device that is attached to a computer . A driver provides a software interface to hardware devices , enabling operating systems and other computer programs to access hardware functions without needing to know precise details of the hardware being used . A driver typically communicates with the device through the computer bus or communications subsystem to which the hardware connects . When a calling program invokes a routine in the driver , the driver issues commands to the device . Once the device sends data back to the driver , the driver may invoke routines in the original calling program . Drivers are hardware dependent and operating - system - specific . They usually provide the interrupt handling required for any necessary asynchronous time - dependent hardware interface . - A computer is a device that can be instructed to carry out an arbitrary set of arithmetic or logical operations automatically. The ability of computers to follow a sequence of operations, called a "program", make computers very flexible and useful. Such computers are used as control systems for a very wide variety of industrial and consumer devices. This includes simple special purpose devices like microwave ovens and remote controls, factory devices such as industrial robots and computer assisted design, but also in general purpose devices like personal computers and mobile devices such as smartphones. The Internet is run on computers and it connects millions of other computers. - An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs. All computer programs, excluding firmware, require an operating system to function. - A computer program is a collection of instructions that performs a specific task when executed by a computer. A computer requires programs to function, and typically executes the program's instructions in a central processing unit. - A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions. The computer industry has used the term "central processing unit" at least since the early 1960s. Traditionally, the term "CPU" refers to a processor, more specifically to its processing unit and control unit (CU), distinguishing these core elements of a computer from external components such as main memory and I/O circuitry. After reading the paragraphs above, we are interested in knowing the entity with which 'device driver' exhibits the relationship of 'subclass of'. Find the answer from the choices below. Choices: - ability - central processing unit - computer - computer program - device - general - industry - internet - memory - microwave - out - processor - sequence - system software - term
system software

Information: - Robert Lorne Stanfield, PC, QC (April 11, 1914 December 16, 2003) was the 17th Premier of Nova Scotia and leader of the federal Progressive Conservative Party of Canada. He was born into an affluent Nova Scotia clothing manufacturing and political family in 1914. He graduated from Dalhousie University and Harvard Law School in the 1930s. Stanfield became the leader of the Nova Scotia Progressive Conservative Party in 1948, and after a rebuilding period, led the party to government in 1956. As premier, he won three straight elections. His government was credited with modernizing the way the province delivered education and medical services. In 1967, he resigned as premier and became the leader of the federal Progressive Conservative Party. He was the leader of the "Her Majesty's Loyal Opposition" and fought three general elections, losing each time to the Liberals under Pierre Trudeau. He resigned as leader in 1976 and from public office in 1979. In retirement, he lived mostly in Ottawa, and died there in 2003 from complications due to pneumonia. He is sometimes referred to as "the best prime minister Canada never had". As one of Canada's most distinguished and respected statesmen, he was one of several people granted the style "The Right Honourable" who were not so entitled by virtue of an office held. - Sir John Alexander Macdonald (11 January 1815 6 June 1891) was the first Prime Minister of Canada (18671873, 18781891). The dominant figure of Canadian Confederation, he had a political career which spanned almost half a century. He drank heavily, and in 1873 was voted out during the Pacific Scandal, in which his party took bribes from businessmen seeking the contract to build the Pacific Railway. Macdonald's greatest achievements were building and guiding a successful national government for the new Dominion, using patronage to forge a strong Conservative Party, promoting the protective tariff of the National Policy, and building the transcontinental Canadian Pacific Railway. Economic growth was slow during his years in office, as Canada verged on stagnation; many residents migrated to the fast-growing United States. He fought to block provincial efforts to take power back from Ottawa. His most controversial move was to approve the execution of Metis leader Louis Riel for treason in 1885; it alienated many Francophones. - Dalhousie University (commonly known as Dal) is a public research university in Nova Scotia, Canada, with three campuses in Halifax, a fourth in Bible Hill, and medical teaching facilties in Saint John, New Brunswick. Dalhousie offers more than 4,000 courses and 180 degree programs in twelve undergraduate, graduate, and professional faculties. The university is a member of the U15, a group of research-intensive universities in Canada. - The Conservative Party of Canada, colloquially known as the Tories, is a political party in Canada. It is positioned on the right of the Canadian political spectrum. The party's leader from 2004 to 2015 was Stephen Harper, who served as Prime Minister from 2006 to 2015. - The Canadian federal election of 1974 was held on July 8 , 1974 to elect members of the Canadian House of Commons of the 30th Parliament of Canada . The governing Liberal Party was reelected , going from a minority to a majority government , and gave Prime Minister Pierre Trudeau his third term . The Progressive Conservatives , led by Robert Stanfield , did well in the Atlantic provinces , and in the West , but the Liberal support in Ontario and Quebec ensured a majority Liberal government . - William Lyon Mackenzie King (December 17, 1874 July 22, 1950) was the dominant Canadian political leader from the 1920s through the 1940s. He served as the tenth Prime Minister of Canada from 1921 to 1926, 1926 to 1930, and 1935 to 1948. He is best known for his leadership of Canada throughout the Second World War (19391945) when he mobilized Canadian money, supplies and volunteers to support Britain while boosting the economy and maintaining home front morale. A Liberal with 21 years and 154 days in office, he was the longest-serving prime minister in Canadian history. Trained in law and social work, he was keenly interested in the human condition (as a boy, his motto was "Help those that cannot help themselves"), and played a major role in laying the foundations of the Canadian welfare state. - Joseph Philippe Pierre Yves Elliott Trudeau (; October 18, 1919 September 28, 2000), better known as Pierre Trudeau or Pierre Elliott Trudeau, was a Canadian politician who served as the 15th Prime Minister of Canada from 19681979 and 19801984. He is the 3rd longest-serving Prime Minister in Canadian history (behind William Lyon Mackenzie King and John A. Macdonald), having served for 15 years, 164 days. After reading the paragraphs above, we are interested in knowing the entity with which 'canadian federal election' exhibits the relationship of 'office contested'. Find the answer from the choices below. Choices: - member - premier - prime minister - prime minister of canada
prime minister of canada