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Raspberry Pi

From Wikipedia, the free encyclopedia

Raspberry_Pi_2_Model_B_v1.1_top_new

The Raspberry Pi is a series of credit card-sized single-board computers developed in the UK by the Raspberry Pi Foundation with the intention of promoting the teaching of basic computer science in schools.[4][5][6]

The original Raspberry Pi and Raspberry Pi 2 are manufactured in several board configurations through licensed manufacturing agreements with Newark element14 (Premier Farnell), RS Components and Egoman. These companies sell the Raspberry Pi online.[7] Egoman produces a version for distribution solely in China and Taiwan, which can be distinguished from other Pis by their red colouring and lack of FCC/CE marks. The hardware is the same across all manufacturers.

The original Raspberry Pi is based on the Broadcom BCM2835 system on a chip (SoC),[1] which includes an ARM1176JZF-S 700 MHz processor, VideoCore IV GPU,[8] and was originally shipped with 256 megabytes of RAM, later upgraded (models B and B+) to 512 MB.[2][9] The system has Secure Digital (SD) (models A and B) or MicroSD (models A+ and B+) sockets for boot media and persistent storage.[10]

In 2014, the Raspberry Pi Foundation launched the Compute Module, which packages a BCM2835 with 512 MB RAM and an eMMC flash chip into a module for use as a part of embedded systems.[11]

The Foundation provides Debian and Arch Linux ARM distributions for download.[12] Tools are available for Python as the main programming language, with support for BBC BASIC[13] (via the RISC OS image or the Brandy Basic clone for Linux),[14] C, C++, Java,[15] Perl and Ruby.[16]

As of 18 February 2015, over five million Raspberry Pis have been sold.[17] While already the fastest selling British personal computer, it has also shipped the second largest number of units behind the Amstrad PCW, the “Personal Computer Word-processor“, which sold eight million.

In early February 2015, the next-generation Raspberry Pi, Raspberry Pi 2, was officially announced.[18] The new computer board will initially be available only in one configuration (model B) and features a Broadcom BCM2836 SoC, with a quad-core ARM Cortex-A7 CPU and a VideoCore IV dual-core GPU; 1 GB of RAM with remaining specifications being similar to those of the previous generation model B+. Crucially, the Raspberry Pi 2 will retain the same US$35 price point of the model B,[19] with the US$25 model A remaining on sale.

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