Data Backup HQ

One additional SBS 2008 User CAL (Client Access License) for accessing a Windows Small Business Server 2008 network
Purchase incremental CALs for each user or device that is accessing the Windows SBS network
With user CALs, you acquire a CAL for individuals who are given named access to your server–licensed users can access the server from any [...]

Twenty additional SBS 2008 User CALs (Client Access Licenses) for accessing a Windows Small Business Server 2008 network
Purchase incremental CALs for each user or device that is accessing the Windows SBS network
With user CALs, you acquire a CAL for individuals who are given named access to your server–licensed users can access the server from any [...]

One additional SBS 2008 Device CAL (Client Access License) for accessing a Windows Small Business Server 2008 network
Purchase incremental CALs for each user or device that is accessing the SBS network
With device CALs, you acquire a CAL for every device–such as laptops, desktop computers, and Microsoft Windows Mobile¿based Pocket PCs and smartphones–that needs access to [...]

Hi there I am Studying for my CompTIA Network+ certification and am having trouble with the data backup methods.
Can anyone help me?
I am having some difficulty in understanding the ‘Incremental’ and ‘Differential’ backup methods along with the concept of the ‘Archive Bit’
Can anyone please explain in simple terms
Also, what will i need to know [...]

Five additional SBS 2008 User CALs (Client Access Licenses) for accessing a Windows Small Business Server 2008 network
Purchase incremental CALs for each user or device that is accessing the Windows SBS network
With user CALs, you acquire a CAL for individuals who are given named access to your server–licensed users can access the server from any [...]

Five additional SBS 2008 User CALs (Client Access Licenses) for accessing a Windows Small Business Server 2008 Premium network
Purchase incremental CALs for each user or device that is accessing the Windows SBS Premium network
With user CALs, you acquire a CAL for individuals who are given named access to your server–licensed users can access the server [...]