http://tekreaders.com/blog/2012/03/14/raspberry-pi/
When I first saw this project, my first thought was :
“I wonder if this thing can be used to make an HTPC with a DVB-S2 USB tuner. From the hardware point of view it certainly can. I can´t wait to get my hands on one of this delicious Raspberries.”
Here is the specification of Raspberry Pi from the eLinux Wiki.
The first product is the size of a credit card, and is designed to plug into a TV or HDMI monitor. It comes in two variants, model A and B, with B having more features. The expected price is $25 for model A and $35 for model B. The GPIO pins on each board allow the use of optional expansion boards.
Model A Model B
Target price: US$25 (GBP £16) US$35 (GBP £22)
System-on-a-chip (SoC): Broadcom BCM2835 (CPU + GPU + SDRAM)
CPU: 700 MHz ARM11 ARM1176JZF-S core
GPU: Broadcom VideoCore IV,OpenGL ES 2.0,OpenVG 1080p30 H.264 high-profile encode/decode
Memory (SDRAM)iB 256 MiB (previously listed as 128MiB for model A, but an upgrade to 256MiB was announced on 29 Feb 2012)
USB 2.0 ports: 1(provided by the BCM2835) 2 (via integrated USB hub)
Video outputs: Composite video|Composite RCA, HDMI (not at the same time)
Audio outputs: TRS connector|3.5 mm jack, HDMI
Audio inputs: none, but a USB mic or sound-card could be added
Onboard Storage: Secure Digital|SD / MMC / SDIO card slot
Onboard Network: None 10/100 wired Ethernet RJ45
Low-level peripherals: General Purpose Input/Output (GPIO) pins, Serial Peripheral Interface Bus (SPI), I²C, I²S, Universal asynchronous receiver/transmitter (UART)
Real-time clock: None
Power ratings (provisional, from alpha board): 500mA, (2.5 Watt) 700mA, (3.5 Watt)
Power source: 5V via Micro USB or GPIO header
Size: 85.60mm x 53.98mm (3.370 × 2.125 inch)