Tablet computer.

Just back to the some years it were made possible to make small handheld computing devices by miniaturizing the electronic circuits. Personal digital assistant (PDA) which have function like calendar, notepad, address book, and etc was the first small handheld computing device. Now a days smartphone with internet and many other functions has overtaken to PDA's. One of it function is e-book through which books get stored in digital form. It uses electronic paper to give same experience as that of original paper. A thousands of book can be stored in e-book due it's memory. The tablet computer is the most recent handheld computing device. It look likes a thin flat display but it is a complete computer. Touch sensitive screen plays major role to control the tablet computer which is linked to it's function. Software download from the internet can be run in it by supporting it's system. Apple iPad is the most popular computer tablet now which have multi touch interface to help screen to detect the movement of fingertips. This screen plays such that image can be enlarge and reduce in size on the role of fingertips on it.