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 Telecom Icon |
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Add Telecom icon to cartImage sizes: 16x16, 24x24, 32x32, 48x48, 256x256
File formats: BMP, GIF, PNG, ICO
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What Are Mac Icons?
A number of independent vendors are providing custom icons in sizes and resolutions standard to certain systems. The article explains what icons are, how they are designed and implemented in various platforms, and what standards are defined for Windows icons, Mac icons, and PNG icons.Computer icons are an integral part of any modern GUI. Icons are small pictograms of standardized sizes that visually represent objects, actions, and symbols. In graphical user interfaces, icons are used as a quicker, more intuitive way to communicate with the user. Icons depicting typical elements of a user interface are better visible than text, can be recognized faster, and are certainly easier on the eyes.
Originally introduced in 1970 by the Xerox Research Center and widely deployed by the Mac OS and Microsoft Windows systems, icons make new users feel more comfortable with computer systems, learn quicker and interact more efficiently. Icons can be used to replace or supplement text commands. Widely used in menus, toolbars, on buttons and in the latest ribbon-type user interfaces, icons have come a long way from the original concept.
There are several graphic formats for storing icons. Microsoft Windows systems use Windows icons in the platform-dependent ICO format. Apple Macintosh systems use Mac icons in their specific formats, while Unix-based systems employ PNG icons for most applications. As such, icon editing software is generally available for the Windows and Mac OS platforms, while Unix users can create their icons with any graphic editor.
As a rule of thumb, icons are square pictograms that come in a number of standard sizes and color resolutions. Most platforms support icon sizes of 16x16 to 128x128 pixels, while some systems readily accept icons as large as 512x512 pixels. The ultra-high definition 512x512 pixel icons were first employed in Mac OS Leopard.
Pixel resolutions of all icons are platform dependent. For example, Windows icons are defined as images in 16 and 256-color gammas as well as True Color pictures with alpha channel. Windows icons come in standard sizes of 16x16, 32x32, and 48x48 pixels. Windows Vista implements new standards for Windows icons, including icons in sizes of up to 256x256 pixels in True Color only. Optionally, images of 128x128 and 512x512 pixels are supported. Interestingly, the high-resolution Windows Vista icons are stored in compressed PNG format instead of Windows ICO used in older versions of Windows and for lower resolution images. Other systems such as Windows Mobile can employ standard icons of other resolutions, e.g. 24x24 pixels.
Many independent vendors are providing custom icons. Aha-Soft offers a variety of Windows icons, Mac icons, and PNG icons in all sizes and resolutions common to those systems. The company sells royalty-free icons individually and in matching sets that include icons drawn a common style or theme.
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