Office 365 is the Microsoft Office suite of applications.
Microsoft Office is mobile friendly and offers great tools for collaboration.with better access to critical documents.
Office 365 also supports Microsoft’s vision of cloud computing, specifically that of running a company’s groupware suite of apps. With Exchange Online, SharePoint Online, and Lync Online, users get all the benefits of accessing their email, calendar, company resources, and communication tools without the need of an extensive infrastructure or a big IT department.
Office 365 becomes a subscription service. Like all software as a service (SAAS) offerings, there are various options to choose from depending on your particular needs.