תקציר
A computer is a machine that can be programmed to carry out sequences of arithmetic or logical operations automatically. Modern computers can perform generic sets of operations known as programs. These programs enable computers to perform a wide range of tasks. A computer system is a "complete" computer that includes the hardware, operating system (main software), and peripheral equipment needed and used for "full" operation. This term may also refer to a group of computers that are linked and function together, such as a computer network or computer cluster.
A broad range of industrial and consumer products use computers as control systems. Simple special-purpose devices like microwave ovens and remote controls are included, as are factory devices like industrial robots and computer-aided design, as well as general-purpose devices like personal computers and mobile devices like smartphones. Computers power the Internet, which links hundreds of millions of other computers and users.
Early computers were meant to be used only for calculations. Simple manual instruments like the abacus have aided people in doing calculations since ancient times. Early in the Industrial Revolution, some mechanical devices were built to automate long tedious tasks, such as guiding patterns for looms. More sophisticated electrical machines did specialized analog calculations in the early 20th century. The first digital electronic calculating machines were developed during World War II. The first semiconductor transistors in the late 1940s were followed by the silicon-based MOSFET (MOS transistor) and monolithic integrated circuit (IC) chip technologies in the late 1950s, leading to the microprocessor and the microcomputer revolution in the 1970s. The speed, power and versatility of computers have been increasing dramatically ever since then, with transistor counts increasing at a rapid pace (as predicted by Moore's law), leading to the Digital Revolution during the late 20th to early 21st centuries.
Conventionally, a modern computer consists of at least one processing element, typically a central processing unit (CPU) in the form of a microprocessor, along with some type of computer memory, typically semiconductor memory chips. The processing element carries out arithmetic and logical operations, and a sequencing and control unit can change the order of operations in response to stored information. Peripheral devices include input devices (keyboards, mice, joystick, etc.), output devices (monitor screens, printers, etc.), and input/output devices that perform both functions (e.g., the 2000s-era touchscreen). Peripheral devices allow information to be retrieved from an external source and they enable the result of operations to be saved and retrieved.Affect may refer to:
Affect (education)
Affect (linguistics), attitude or emotion that a speaker brings to an utterance
Affect (philosophy)
Affect (psychology), the experience of feeling or emotion
Affect display, signs of emotion, such as facial expression, vocalization, and posture
Affect theory
Affective science, the scientific study of emotion
Affective computing, an area of research in computer science aiming to understand the emotional state of users
Reduced affect display, a.k.a. emotional blunting or affective flattening, a reduction in emotional reactivity
Pseudobulbar affect, a.k.a. labile affect, the unstable display of emotion
Affect (rhetoric), the responsive, emotional feeling that precedes cognition
Affected accent; see Accent (sociolinguistics)
Affect (company), a defunct Japanese video game developerPoverty is the state of not having enough material possessions or income for a person's basic needs. Poverty may include social, economic, and political elements. Absolute poverty measures compare income against the amount needed to meet basic personal needs, such as food, clothing, and shelter. Relative poverty measures when a person cannot meet a minimum level of living standards, compared to others in the same time and place. Therefore, the floor at which relative poverty is defined varies from one country to another, or from one society to another.As of 2019, most people on the planet live in poverty: (in Purchasing Power Parity dollars) 85% live on less than $30 per day, two-thirds live on less than $10 per day, and 10% live on less than $1.90 per day (extreme poverty).Many governments and non-governmental organizations try to reduce poverty by providing basic needs to people who are unable to earn a sufficient income. These efforts can be hampered by constraints on government's ability to deliver services, such as corruption, tax avoidance, debt and loan conditionalities and by the brain drain of health care and educational professionals. Strategies of increasing income to make basic needs more affordable typically include welfare, economic freedoms and providing financial services. Meanwhile, the poorest citizens of middle-income countries have largely failed to receive an adequate share of their countries’ increased wealth.
שפה מקורית | ???core.languages.en_GB??? |
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מזהי עצם דיגיטלי (DOIs) | |
סטטוס פרסום | ???researchoutput.status.published??? - 2021 |
סדרות פרסומים
שם | google.com.au |
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טביעת אצבע
להלן מוצגים תחומי המחקר של הפרסום 'How Does Computer Virus Affect Poverty?'. יחד הם יוצרים טביעת אצבע ייחודית.פרויקטים
תזות של סטודנטים
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Is Unemployed People Still Evolving?
McBeath, R. (???studentthesis.roles.studentthesis.author???), 2020תזה: ???studentthesis.studentthesistypes.studentthesis.doc???