Microsoft Office is a proprietary commercial office suite of desktop applications, servers and services for the Microsoft Windows and Mac OS X operating systems, introduced by
Microsoft on 1st August, 1989. It contains Microsoft Word, Microsoft Excel, Microsoft PowerPoint and Microsoft Access. The current versions are Office 2010 for windows, released on 15th June, 2010; and Office 2011 for Mac OSX, released on 26th October, 2010.
MS-Word It is a Word processing application that is mainly used for the creation of text based documents.
MS-Excel It is a spreadsheet application that is used for analysing , sharing and managing information for accountirng purpose performing mathematical calculation
etc. A group of worksheets is called workbook.
MS-PowerPoint The application software that can create professional looking visual aids which is called presentation graphics software.
MS-Access It is a relational database management system that combines the relational Microsoft JET Database engine
with graphical user interface and software development tools.