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 Desktop Education Icons

Schoolbag Icon Images

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Icon sizes: 256x256, 48x48, 32x32, 24x24, 16x16
File formats: ICO, GIF, PNG, BMP

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What Are Mac Icons?

A number of independent vendors are supplying custom icons in sizes and resolutions common to certain systems. The article explains what icons are, how they are used and implemented in various systems, and what standards exist for Windows icons, Mac icons, and PNG icons.

Computer icons are an integral part of any modern GUI. Icons are small pictograms of standard resolutions that depict objects, actions, and other concepts. In window-based systems, icons are used as a faster, more intuitive way to communicate with the user. Icons representing common elements of a user interface are more visually appealing than text, can be recognized faster, and are easier for new computer users.

Originally developed in 1970 by the Xerox Research Center and widely popularized by the Apple Macintosh and Microsoft Windows systems, icons make new users feel more comfortable with operating systems, learn faster and work more efficiently. Icons can be employed to replace or supplement text messages. Commonly used in menus, toolbars, on buttons and in new ribbon-type user interfaces, icons have come a long way from the original concept.

There are multiple graphic formats for storing icons. Microsoft Windows systems store 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 software is generally available for the Windows and Mac OS platforms, while Unix users can design their icons with any image editor.

As a rule of thumb, icons are square images that come in a variety of standard sizes and color resolutions. Most platforms use icon sizes of 16x16 to 128x128 pixels, while some systems readily accept icons as large as 512x512 pixels. The large 512x512 pixel icons were first employed in Mac OS Leopard.

Pixel dimensions of all icons are operating system dependent. For example, Windows icons are specified as pictures in 16 and 256-color gammas as well as True Color pictures with alpha channel. Windows icons come in standard resolutions 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 higher resolution versions of 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 platforms such as Windows Mobile can use standard icons of other resolutions, e.g. 24x24 pixels.

Numerous independent designers 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 incorporating icons drawn a common style or theme.



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You can buy individual icons to suit your needs. Each icon is $1 when purchased individually.

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Large Weather Icons Large Weather Icons represent a number of weather conditions that are common for software, weather Web sites, and mobile gadgets. The icons come in all resolutions standard to Windows, Mac OS, and other systems. The biggest versions are huge 512x512 pixel icons with vector sources in Adobe Illustrator (.ai) format easily affordable and ready to be printed or used in presentations in highest quality.

Classic Hardware Icon Set Hardware Icon Set is a pack of hardware related images, available in GIF, PNG, ICO and BMP formats and 16x16, 24x24 and 32x32 sizes. The pack features both 32-bit and 256-color icons.

16x16 Free Application Icons 16x16 Free Application Icons pack has everything that are required for your web project or application toolbar.

Medical Icons for Vista Medical Icons for Vista has been created to eliminate any misunderstanding appearing while viewing a medical webpage or operating a medical program. The icons are available in numerous sizes and formats.

People Icons for Vista People Icons for Vista depict people of different occupations, social and family roles. They are created in Vista style and are available with or without shadows. Icons are delivered in various formats and sizes.