Raspberry Pi Model B+

The Model B+ is the higher-spec variant of the Raspberry Pi. It replaced the original in July 2014. Compared to the Model B it has:
More GPIO
. The GPIO header has grown to 40 pins, while retaining the same pinout for the first 26 pins as the Model B.
More USB
. We now have 4 USB 2.0 ports, compared to 2 on the Model B, and better hotplug and overcurrent behaviour.
Micro SD
. The old friction-fit SD card socket has been replaced with a much nicer push-push micro SD version.
Lower power consumption
. By replacing linear regulators with switching ones we’ve reduced power consumption by between 0.5W and 1W.
Better audio
. The audio circuit incorporates a dedicated low-noise power supply.
Neater form factor
. We’ve aligned the USB connectors with the board edge, moved composite video onto the 3.5mm jack, and added four squarely-placed mounting holes.
What is a Raspberry PI?
The Raspberry Pi is a low cost, credit-card sized computer that plugs into a computer monitor or TV, and uses a standard keyboard and mouse. It is a capable little device that enables people of all ages to explore computing, and to learn how to program in languages like Scratch and Python. It’s capable of doing everything you’d expect a desktop computer to do, from browsing the internet and playing high-definition video, to making spreadsheets, word-processing, and playing games.
What you will need:
REQUIRED:
Display and connectivity cables
Any HDMI/DVI monitor or TV should work as a display for the Pi . For best results, use one with HDMI input, but other connections are available for older devices. Use a standard Ethernet cable for internet access.
Keyboard and mouse
Any standard USB keyboard and mouse will work with your Raspberry Pi.
Power supply
Use a 5V micro USB power supply to power your Raspberry Pi. Be careful that whatever power supply you use outputs at least 5V; insufficient power will cause your Pi to behave in strange ways.
NOT ESSENTIAL BUT HELPFUL TO HAVE:
Internet connection
To update or download software, we recommend that you connect your Raspberry Pi to the internet either via and ethernet cable or a wifi adapter.
Headphones
or earphones with a 3.5mm jack will work with your Raspberry Pi.
Plugging in your Raspberry Pi
Before you plug anything into your Raspberry Pi, make sure that you have all the equipment listed above to hand. Then follow these instructions:
Begin by slotting your Micro-SD card into the Micro-SD card slot on the Raspberry Pi, which will only fit one way.
Next, plug in your USB keyboard and Mouse into the USB slots on the Raspberry Pi.
Make sure that your monitor or TV is turned on, and that you have selected the right input (e.g. HDMI 1, DVI, etc)
Then connect your HDMI cable from your Raspberry Pi to your monitor or TV.
If you intend to connect your Raspberry Pi to the internet, plug in an ethernet cable into the ethernet port next to the USB ports, otherwise skip this step.
When you are happy that you have plugged in all the cables and Micro- SD card required, finally plug in the micro usb power supply. This action will turn on and boot your Raspberry Pi.