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A computer monitor provides a visual interface between the machine and the user. Human–computer interaction (HCI) is research in the design and the use of computer technology, which focuses on the interfaces between people and computers.
In the early days of computer programming, there wasn't really a need for setting up any kind of education system, as the only people working with computers at the time were early scientists and mathematicians.
Human computers were used to compile 18th and 19th century Western European mathematical tables, for example those for trigonometry and logarithms.Although these tables were most often known by the names of the principal mathematician involved in the project, such tables were often in fact the work of an army of unknown and unsung computers.
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]
The Xfce desktop environment offers a graphical user interface following the desktop metaphor.. In the industrial design field of human–computer interaction, a user interface (UI) is the space where interactions between humans and machines occur.