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What is a Raspberry Pi?
“An ARM GNU/Linux box for $25. Take a byte!”
The Raspberry Pi is an ultra-low-cost, credit card sized Linux computer. Developed by the Raspberry Pi Foundation in the UK, the Raspberry Pi aims to put the fun back into learning computing by promoting the study of computer science and programming at a school level.
It is clear that this tiny computer will have many other applications outside of being just a learning tool. Demos already show the Raspberry Pi running games, word processing, managing spread-sheets and playing high-definition video. With access to the internet, through Ethernet or Wi-Fi (with a USB dongle), and a high definition output, the Raspberry Pi is an incredibly versatile piece of computing kit. Most importantly the Raspberry Pi gives every child in the country a chance to own a personal computer which they can develop, learn from, and play with, at an incredibly low cost and in an unbelievably small package.
Raspberry Pi Technical Features (Model B)
The Raspberry Pi Model B features:
- The Broadcom BCM2835 ARM11 (The one that you find in most smartphones) 700Mhz ‘System on Chip’ Processor (Similar performance to a 300MHz Pentium 2 Processor).
- Integrated Videocore 4 Graphics Processing Unit (GPU) capable of playing Full 1080p High Definition Blu-Ray Quality Video (Roughly equivalent graphical processing power of an Xbox 1).
- 512Mb SDRAM
- The free, versatile, and highly developer friendly Debian GNU/Linux Operating System
- 2 x USB Ports
- HDMI Video Output
- RCA Video Output
- 3.5mm Audio Output Jack
- 10/100Mb Ethernet Port for Internet Access
- 5V Micro USB Power Input Jack
- SD, MMC, SDIO Flash Memory Card Slot
- 26-pin 2.54mm Header Expansion Slot (Which allow for peripherals and expansion boards)
Q) Where Can I Buy A Raspberry Pi?
A) The Raspberry Pi computer is available right here, in The Pi Hut’s Raspberry Pi Store!
Q) What are the dimensions of the Raspberry Pi?
A) The Raspberry Pi measures 85.60mm x 53.98mm x 17mm, with a little overlap for the SD card and connectors which project over the edges. It weighs 45g.
Q) How powerful is it?
A) The GPU provides Open GL ES 2.0, hardware-accelerated OpenVG, and 1080p30 H.264 high-profile decode.
The GPU is capable of 1Gpixel/s, 1.5Gtexel/s or 24 GFLOPs of general purpose compute and features a bunch of texture filtering and DMA infrastructure.
That is, graphics capabilities are roughly equivalent to Xbox 1 level of performance. Overall real world performance is something like a 300MHz Pentium 2, only with much, much swankier graphics.
Q) Will it overclock?
A) There’s a little overclocking headroom – most devices will run happily at 800MHz. There’s no BIOS per se, but we do support booting bare metal code, so something could be done.
Q) What are the power requirements?
A) The device is powered by 5v micro USB, and requires a minimum output of 700mA. Power supplies are available right here in The Pi Hut’s Raspberry Pi Store.
Q) What operating system (OS) does it use?
A) The current recommended OS for the Raspberry Pi is “Raspbian Wheezy Linux”. The OS is stored on the SD card
For more information about the Raspberry Pi and the Raspberry Pi Foundation, visit the Raspberry Pi Foundation’s Website: http://www.raspberrypi.org/
For more information about how to use your Raspberry Pi and the hardware it requires, visit the Raspberry Pi Wiki: http://elinux.org/R-Pi_Hub