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The crumbs, dust, and other particulate that fall between the keys and build up underneath are loosened by spraying pressurized air into the keyboard, then removed with a low-pressure vacuum cleaner.
Alan Kay holding the mockup of his Dynabook concept in 2008. The history of the laptop follows closely behind the development of the personal computer itself. A "personal, portable information manipulator" was imagined by Alan Kay at Xerox PARC in 1968, [7] and described in his 1972 paper as the "Dynabook". [8]
Quality of life (QOL) is defined by the World Health Organization as "an individual's perception of their position in life in the context of the culture and value systems in which they live and in relation to their goals, expectations, standards and concerns".
Some of the most common forms of mobile computing devices are as given below: Portable computers, compact, lightweight units including a full character set keyboard and primarily intended as hosts for software that may be parameterized, such as laptops/desktops, smartphones/tablets, etc.
A human computer, with microscope and calculator, 1952. It was not until the mid-20th century that the word acquired its modern definition; according to the Oxford English Dictionary, the first known use of the word computer was in a different sense, in a 1613 book called The Yong Mans Gleanings by the English writer Richard Brathwait: "I haue [] read the truest computer of Times, and the best ...
An artist's depiction of a 2000s-era desktop-style personal computer, which includes a metal case with the computing components, a display and a keyboard (mouse not shown). A personal computer, often referred to as a PC or simply computer, is a computer designed for individual use. [1]
In computer software, an operating environment or integrated applications environment is the environment in which users run application software.The environment consists of a user interface provided by an applications manager and usually an application programming interface (API) to the applications manager.
Encyclopædia Britannica, a printed encyclopedia, and Wikipedia, an online encyclopedia. An encyclopedia [a] is a reference work or compendium providing summaries of knowledge, either general or special, in a particular field or discipline.