You will need a computer with an SD card reader to install the image.
Download the image
Download the Raspbian image on the Raspberrypi site.
http://www.raspberrypi.org/downloads/
Writing the image to an SD card
The image fi le can only be installed on the SD-card by a disk imaging software program!
See our guide for your system on our site:
• Linux
• Mac OS
• Windows
This article uses content from the Raspberry Pi Foundation page installing operating system images, which is shared under the Creative Commons Attribution-ShareAlike 4.0 International license.