Office 365 is subscription-based and is delivered as a powerful SaaS
Moving from the traditional model of purchasing software to a subscription-based model can confusing. Unlike Office 2013 (perpetual) which is purchased and installed on individual devices, Office 365 is subscription-based and delivered as a powerful SaaS— perfect for organizations wanting to maximize mobility and take advantage of larger cloud storage capacities. For the most secure and seamless access to your Office 2013 applications, documents, and personal settings, pair Office 365 with Dell™ products optimized for Windows® 8 Pro from System Architects.