A mobile computer is a special type of computer that you can use while you move around. Just like your tablet or your parent's smartphone, it has a screen, a keyboard or touchscreen, and a battery.
But with a mobile computer, you can easily carry it around with you in a backpack, a purse or even just in your hands. And because it's smaller and lighter, you don't need to be in one place to use it.
Mobile computers are very helpful for grown-ups who like to work on the go, students who need to do their homework outside or even for playing games during long car rides.
But just like every other device, it needs to be charged once in a while, and you should be careful not to drop it!