Photos: Microsoft Office 365 up close

Users then register on the system via this sign-up screen, adding information such as their Microsoft Online Services ID and password.

Screenshot: Microsoft

Once users have been registered, they land on this sign-in page which features a quick-start guide and directs them to the various program options, such as Lync Online and SharePoint Online.

Screenshot: Microsoft

This is the homepage for Office Web Apps in Office 365 with the Outlook email system on the left of the screen and an email message on the right, welcoming the user to the system.

Screenshot: Microsoft

The online version of Excel.

Screenshot: Microsoft

Businesses can also build, customise and manage their own intranet sites using the SharePoint Online collaboration software in Office 365.

Screenshot: Microsoft

Video and photo editing can be performed using the online version of PowerPoint.

Screenshot: Microsoft

Users can also co-author documents created with the Office Professional Plus applications of Excel, PowerPoint and Word. This facility means several people can work simultaneously on the same document.

Screenshot: Microsoft

This is the Office 365 management dashboard, which IT staff can use to manage user access to applications as well other admin tasks such as adding new licences and resetting passwords.

Screenshot: Microsoft

Office 365 is also available for Microsoft's latest mobile phone OS, Windows Phone 7. The mobile version of the Office 365 homepage is shown above.

To find out more about Office 365, see Office 365: Microsoft put its Office suite in the cloud.

Screenshot: Microsoft