Seminar Report Raspberry pi computer
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The Raspberry Pi is a credit card sized single-board computer developed in the UK by the Raspberry Pi Foundation with the intention of stimulating the teaching of basic computer science in schools. The Raspberry Pi has a Broadcom BCM2835 system on a chip (SoC),which includes an ARM1176JZF-S 700MHz processor (The firmware includes a number of "Turbo" modes so that the user can try to attempt overclocking,up-to 1GHz, without affecting the warranty), VideoCore IV GPU, and 256 megabytes of RAM. It does not include a built-in hard disk or solid-state drive, but uses an SD card for booting and long-term storage. The Foundation's goal is to offer two versions, priced at US$ 25 and US$ 35. The Foundation started accepting orders for the higher priced model on 29 February 2012.The Foundation provides Debian and Arch Linux ARM distributions for download. Also planned are tools for supporting Python as the main programming language, with support for BBC BASIC (using the "BrandyBasic" clone), C,and Perl.
An early alpha-test board in operation. Its layout is different from the beta and production boards.In 2006, early concepts of the Raspberry Pi were based on the Atmel ATmega644 microcontroller. Its schematics and PCB layout are available for public download.Foundation trustee Eben Upton assembled a group of teachers, academics and computer enthusiasts to devise a computer to inspire children. The computer is inspired by Acorn's BBC Micro of 1981.The first ARM prototype version of the computer was mounted in a package the same size as a USB memory stick. It had a USB port on one end and a HDMI port on the other.
The first batch of 10,000 boards was manufactured in Taiwan and China, rather than in the UK. This is in part because import duty is payable on individual components but not on finished products. Chinese manufacturers also quoted a lead time of four weeks, compared to 12 weeks in the UK. Savings can be reinvested in the Foundation's research and development activities.Shipping delays for the first batch were announced in March 2012, as the result of installation of an incorrect Ethernet port. But the Foundation expects that manufacturing quantities of future batches can be increased with little difficulty if required.
"We have ensured we can get them [the Ethernet connectors with magnetics] in large numbers and Premier Farnell and RS Components [the two distributors] have been fantastic at helping to source components," Upton said.
Initial sales commenced 29 February 2012 at 06:00 UTC;. At the same time, it was announced that the Model A, originally to have had 128 MB of RAM, was to be upgraded to 256 MB before release. The Foundation's website also announced "Six years after the project's inception, we're nearly at the end of our first run of development –
Raspberry Pi 3 although it's just the beginning of the Raspberry Pi story." The two licensed stores selling them within the United Kingdom, Premier Farnell and RS Components, had their websites stalled by heavy web traffic immediately after the
launch. At one point the webmaster pleaded, "Guys – can you please stop hitting F5 on our website quite so often? You're bringing the server to its knees."Although as yet unconfirmed, reports suggest that there are over two million expressions of interest or pre-orders.
On 8 March 2012 The Raspberry Pi Foundation released Raspberry Pi Fedora Remix, at the time its recommended Linux distribution,which was developed at Seneca College in Canada. The Foundation intends to create an App Store website for people to exchange programs
Slackware ARM (formally ARMedslack) version 13.37 and later runs on the Raspberry Pi without modification. The 128–496 MB of available memory on the Raspberry Pi is twice the minimum requirement of 64 MB needed to run Slackware Linux on an ARM or i386 system (While Slackware can load and run a GUI, it was designed to be run from the shell.) The Fluxbox window manager running under the X Window System requires an additional 48 MB of RAM.
In addition, work is being done on system-specific light Linux distributions such as IPFire, OpenELEC, Raspbmc and the XBMC open source digital media center.
Trustee Eben Upton publicly approached the RISC OS Open community in July 2011 to enquire about assistance with a potential port. Adrian Lees at Broadcom has since worked on the port, with his work being cited in a discussion regarding the graphics drivers.
The Raspberry Pi is a small computer. It's about the same length and width as a credit card and costs only $32. It has been designed as a educational computer for school children to learn to program, but is also hugely popular due to it's small size and amazing low cost.Human knowledge is developing stage by stage .Every inventions will create more new questions and inventions. This will continue. Benefits of such developments are distributed socially. Hardware knowledge and software knowledge are interrelated .Raspi helps to increase hardware knowledge and software applications related to that.Raspi motivates users to develop wide range of applications in every sector.