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What is Raspberry Pi ?
The Raspberry Pi is a credit-card-sized single-board computer developed in the UK by the Raspberry Pi Foundation with the intention of promoting the teaching of basic computer science in schools.
Raspberry pi is designed first for the educational purpose only. But now a days people are using it as mining hardware for bitcoin and using it in to make your simple tv into smart tv, it is also being used in microwave to operate it. Raspberry pi is a small killer brain that can do many things. Demand of raspberry pi is more now as it breaks the market of apple.Raspberry pi is now popular device to make compute and other solving tasks.
What it Includes ?
The Raspberry Pi has a Broadcom BCM2835 system on a chip (SoC), which includes an ARM1176JZF-S 700 MHz processor, VideoCore IV GPU, and was originally shipped with 256 megabytes of RAM, later upgraded to 512 MB. It does not include a built-in hard disk or solid-state drive, but uses an SD card for booting and persistent storage.
What is it Provides ?
The Foundation provides Debian and Arch Linux ARM distributions for download. Tools are available for Python as the main programming language.
|Model A||Model B|
|Target price:||US$ 25||US$ 35|
|SoC:||Broadcom BCM2835 (CPU, GPU, DSP, SDRAM, and single USB port)|
|CPU:||700 MHz ARM1176JZF-S core (ARM11 family, ARMv6 instruction set)|
|GPU:||Broadcom VideoCore IV @ 250 MHz
OpenGL ES 2.0 (24 GFLOPS)
MPEG-2 and VC-1 (with license), 1080p30 h.264/MPEG-4 AVC high-profile decoder and encoder
|Memory (SDRAM):||256 MB (shared with GPU)||512 MB (shared with GPU) as of 15 October 2012|
|USB 2.0 ports:||1 (direct from BCM2835 chip)||2 (via the built in integrated 3-port USB hub)|
|Video input:||A CSI input connector allows for the connection of a RPF designed camera module|
|Video outputs:||Composite RCA (PAL and NTSC), HDMI (rev 1.3 & 1.4), raw LCD Panels via DSI 14 HDMI resolutions from 640×350 to 1920×1200 plus various PAL and NTSC standards.|
|Audio outputs:||3.5 mm jack, HDMI, and, as of revision 2 boards, I²S audio(also potentially for audio input)|
|Onboard storage:||SD / MMC / SDIO card slot (3.3V card power support only)|
|Onboard network:||None||10/100 Ethernet (8P8C) USB adapter on the third port of the USB hub|
|Low-level peripherals:||8 × GPIO, UART, I²C bus, SPI bus with two chip selects, I²S audio +3.3 V, +5 V, ground|
|Power ratings:||300 mA (1.5 W)||700 mA (3.5 W)|
|Power source:||5 volt via MicroUSB or GPIO header|
|Size:||85.60 mm × 53.98 mm (3.370 in × 2.125 in)|
|Weight:||45 g (1.6 oz)|
|Operating systems:||Arch Linux ARM, Debian GNU/Linux, Gentoo, Fedora, FreeBSD, NetBSD, Plan 9, Raspbian OS, RISC OS, Slackware Linux|