Tablet PCs are portable computers that use a touchscreen as their primary input. They run standard PC operating systems and can be used like laptops with the added benefit of pen or touch input. Tablet PCs are being used increasingly in education due to their low cost, mobile form factor, and touch interface compared to laptops. They are also being used more in healthcare for patient education, rehabilitation, and pharmaceutical applications. Popular tablet PCs available in India include the Apple iPad, HP Slate, Dell Streak, Samsung Tab, Asus EEE Tablet, and a $35 tablet from an Indian company.