A computer icon usually ranges
from 16 by 16 pixels up to 128 by 128 pixels.
Some upcoming OSs will feature icons up to 512
by 512 pixels. When the graphical output device
has a smaller size, the icon size is small.
Vision impaired users (due to such conditions as
poor lighting, tired eyes, medical impairments,
bright backgrounds, or color blindness) may need
to utilize the self-selected icon size options.
Icons may represents a file, folder, application
or device on a computer operating system. In
modern usage today, the Icon can represent
anything that the users want it to: any macro
command or process, mood-signalling, or any
other indicator. User friendliness also demands
error-free operation, where the icons are
distinct from each other, self explanatory, and
easily visible under all possible user setups.
Icons were first developed as a tool for making
computer interfaces easier for novices to grasp
in the 1970s at the Xerox Palo Alto Research
Center facility. Icon-driven interfaces were
later popularized by the Apple Macintosh and
Microsoft Windows operating environments.
Icons may also be found on the desktop, toolbars
and in the menus of computer application
software such as Microsoft Word. Icons are made
more use-friendly by being very clear from every
other icon. Each Icon-set may also have unifying
features that show that similar icons are
related to each other. |
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