What are the differences between Tablet PCs and Tablets?

Tablet PCs are fully-functional Windows-based PCs. Tablets are based on alternative operating systems such as the Android or Apple OS. Both are valuable products.

The Apple’s iPad currently holds 93% of the market share. For over a decade, Microsoft attempted to introduce people to the Tablet through the Tablet PC products. The Android honeycomb tablets will hit the market spring 2011.

Lora Heiny provides an insight into Tablet PCs on whatisnew.com.

Tablet PCs offer all the power of a standard Microsoft Windows-based notebook plus additional features that improve mobility including pen-input and handwriting recognition. These enhancements increase the number of ways people can use computers for practical and creative work.
Tablet PCs have an integrated digitizer with pen or stylus to allow natural interaction. Operating systems with Ink support include Microsoft Windows XP Tablet PC Edition, Windows Vista Premium SKUs, and Windows 7. Software applications listed on TabletPCPost.com highlight these special features. Remember that you can also use standard Windows applications on Tablet PCs.
Small-notebooks, also known as Netbooks and ULCPCs are ultra-mobile PCs are available with digitizers and designed for basic uses, like surfing the internet. These typically use Windows XP Home or Windows 7 Starter.