Ink Serialized Format

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Ink Serialized Format or ISF is a Microsoft format to store written ink information. The format is mainly used for mobile devices like Personal digital assistants, tablet PCs and Ultra-Mobile PCs to store data entered with a stylus.

Microsoft U.S.-headquartered technology company

Microsoft Corporation (MS) is an American multinational technology company with headquarters in Redmond, Washington. It develops, manufactures, licenses, supports and sells computer software, consumer electronics, personal computers, and related services. Its best known software products are the Microsoft Windows line of operating systems, the Microsoft Office suite, and the Internet Explorer and Edge web browsers. Its flagship hardware products are the Xbox video game consoles and the Microsoft Surface lineup of touchscreen personal computers. As of 2016, it is the world's largest software maker by revenue, and one of the world's most valuable companies. The word "Microsoft" is a portmanteau of "microcomputer" and "software". Microsoft is ranked No. 30 in the 2018 Fortune 500 rankings of the largest United States corporations by total revenue.

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Contents

An ink object is simply a sequence of strokes, where each stroke is a sequence of points, and the points are X, and Y coordinates. Many of the new mobile devices can also provide information such as pressure, and angle. In addition, it can be used to store custom information along with the ink data.

Availability

Its specification is freely available for download. Microsoft has added the ISF format to its technologies available under the Open Specification Promise making ISF related technology patent claims available for everybody to use or implement ISF.

The Microsoft Open Specification Promise is a promise by Microsoft, published in September 2006, to not assert its patents, in certain conditions, against implementations of a certain list of specifications.

This allows for ISF format to be used even together with open source software licensing like GPL2.[ citation needed ]

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