This also improves battery life. With the introduction of the Intel Centrino and Dothan, the Intel-based Tablet PCs like Android 2.3 Tablet will be comparable with faster desktops. As an example, according to Intel, a Centrino 1.6Ghz processor is comparable to 2.4Ghx Pentium4-M.Some Tablet PC models are including a CDRW-DVD drive within the unit for Android 2.2 Tablet . Some have USB or firewire models available. There are also third party drives available.The Tablet PC can use the pen technology in PowerPoint presentations, etc. These annotations can be saved for future presentations or erased completely. Using a Tablet PC with a projector allows the presenter to annotate slides, etc as he speaks.The Tablet PC which you can get from Wholesale Android Tablets can be used in both portrait and landscape modes. A touch of the button changes 10 inch Android Tablet instantly. There's no need to reboot.Tablet PCs generally use a 1024x768 screen resolution of Windows 7 Tablet.