Apple and iPad were the first. They still have the best integration across devices because they control them all. This means that if you have an iPhone and an iPad your data, your apps, your information will easily sync across devices. Android and Windows devices come from many manufacturers. There is only one Apple. This means there is no variety in prices or models other than iPad and iPad Mini which matters if price is a consideration.
The first iPad was released on April 3, 2010. It followed the iPod, a small mobile device that worked as a portable media player. The iPad was the first widely released tablet to have touch screen technology and a virtual keyboard. Applications, generally referred to as 'apps' are purchased through the App Store, which was modeled on iTunes, the Apple Music Store. An iPad can shoot video, take photos, play music, like an iPod and web browse, email, be used for work processing like an laptop. By downloading apps from multiple providers, including Microsoft and Google it can be used to play games, provide references, navigate using GPS, and connect people to social networks like Twitter and Facebook.
In April of 2015 the iPad turned 5. Since it's start more then 75 billions apps have been downloaded.
On October 2012 the iPad Mini was presented and a year later the iPad Air. The current versions are the iPad Air 2 and the iPad Mini 3. In 2015 Apple introduced the Apple Watch, which will ship in June.
When choosing an Apple tablet, it helps if you decide how you want to use it before you make your purchase.