Explanation

Microsoft is an application software

Microsoft Office is an example of Horizontal market software.

Microsoft Office 2016 for Mac apps from top left to bottom right: Word, Excel, PowerPoint, and Outlook.

 Microsoft Office was first announced by Bill Gates on August 1, 1988

Microsoft Office Initial release date: November 19, 1990

Programming languages of Microsoft Office: C++, Objective-C

Microsoft Office Developer: Microsoft Corporation, Jive Software