for what raspberry pi is used.

Question

Well i had heard that we can program stuffs like robots and all but how i mean how to program it, which language has been used for the purpose

Answer 1

Raspberry PI is designed mostly for Python
You need OS for it to work, you'd normally use one of Linux. So Python, Linux for SD card, SD card itself and Google is what you need to startup with that sweet berry🍓

Answer 2

Great, inexpensive machine. You can code in Python or Scratch on it. It is a Linux machine.

Answer 3

You might want to add up a monitor, a keyboard and a mouse to it, as it is basically a "desktop" setup - it is just an integrated motherboard :)
There is also a really simple way to manage your Pi with a smartphone, but I can't imagine a real usability experience with at least a decent keyboard.

Answer 4

It's a computing board: you can program in any language you prefere. Go for the rpi3 for a more PC-like experience (and save some bucks on external wifi/bt dongles). Using Raspbian as OS you have python, scratch, wolfram mathematica, processing, java preinstalled: but again, you can use any programming language you prefere.
Most of the rpi related tutorials and documentation will be about bash scripting and python programming.

What makes the rpi different from a normal motherboard is the availability of a programmable General Purpose Input Output pins header that allows you to interface your rpi with sensors, indicators, actuators (phisical computing)