When a software program is developed for numerous computer platforms is known as cross platform in the same way website is designed for sever brewers is called cross-browser website. It is also explain programs or activities that focus on one or products, for example gaming systems like Ps and Xbox or numerous kinds of cell phones.
For example, a cross-platform application may run on Microsoft Windows on the x86 architecture, Linux on the x86 architecture and macOS on either the PowerPC or x86-based Apple Macintosh systems. Cross-platform programs may run on as many as all existing platforms, or on as few as two platforms. Cross-platform frameworks (such as Xamarin, Phonegap, or Ionic) exist to aid cross-platform development.
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The computer mouse as we know it today was invented and developed by Douglas Engelbart, with the assistance of Bill English, during the 1960’s and was patented on November 17, 1970