What is a Raspberry Pi?

December 1, 2014

The Raspberry Pi is a small, low-cost single-board computer. It can run a variety of Linux-based operating systems. One of the most popular is Raspbian. It is highly valued by hobbyists, technology enthusiasts, educators and experimenters. As a fully functional computer on a board, it can support a wide array projects and functions.

Raspberry Pi B+ Board

Raspberry Pi B+ Board – version 1 (2014)

Model B+ Specifications

  • 512 MB RAM
  • Operating system: Linux based
  • Micro SD
  • Video: HDMI
  • Audio: 3.5mm jack or via HDMI
  • Power: 5v at 600 ma
  • 4 USB Ports
  • 1 Ethernet port 10/100
  • 40 Pin GPIO expansion header
  • Dimensions: 85mm x 56mm


The Pi was the brainchild of a group at the University of Cambridge's Computer Laboratory. Seeing a decline in both numbers and skills in new computer science students, the group developed a plan to produce a low-cost computer board easily accessible and affordable for youths, educators, hobbyists and experimenters to explore hardware, software and programming.

Introduced in 2012, the Raspberry Pi has become phenomenally successful, with demand frequently outpacing supply. Millions of Pi have now been sold throughout the world.

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