OCR Raspberry Pi Getting Started
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OCR Raspberry Pi
Getting Started Tutorials
January 2013
Raspberry Pi
OCR Raspberry Pi Getting Started Tutorials
Contents
1 What is the Raspberry Pi? 3
2 Hardware 5
3 Ingredients 7
4 Preparing the Raspberry Pi 8
5 Connecting the Raspberry Pi 10
6 Raspberry Pi Desktop 13
7 Basic Networking 17
8 Internet Overview 19
9 Shutting Down 20
OCR Raspberry Pi Getting Started Tutorials
3
What is the Raspberry Pi?
The Raspberry Pi is a small computer about the size of a credit card and costs
approximately £25. It was developed in the UK by the Raspberry Pi Foundation
with the hope of inspiring a generation of learners to be creative and to
discover how computers are programmed and how they function.
This small computer features amazing HD (high-definition) quality video
playback, sports high quality audio and has the ability to play 3D games. The
device uses the ARM processor which does most of the hard work in order to
run the Raspberry Pi.
ARM processors can be thought of as the brains of the device.
These processors are mainly used in small devices such as mobile phones, hand
held mobile gaming devices and other small digital devices. The reason for
this is that ARM processors are extremely efficient and fast when used in small
devices. This makes the ARM processor the obvious choice for the Raspberry Pi.
1
OCR Raspberry Pi Getting Started Tutorials
4
Even though the Raspberry Pi is a computer it does not have a hard drive like
traditional computers, instead it relies on the SD card for the starting up and
storing of information. For the Raspberry Pi the SD card does the same job as a
hard drive does in a traditional computer.
The SD card must contain the operating system, programs and the data needed
to run the Raspberry Pi. The operating system tells the Raspberry Pi how to
function, how to handle any input from the user and how to manage programs
when they are running.
What is the Raspberry Pi?
1
OCR Raspberry Pi Getting Started Tutorials
5
Hardware
Hardware is a physical device that can be touched or held, like a hard drive or
a mobile phone. Software can be thought of as a program or a collection of
programs that instruct a computer on what to do and how to do it. Below is an
image of the Raspberry Pi which describes some of the components that make
up the hardware.
GPIO headers
RCA video output for
analogue television
Audio output
2 x USB
ports
Ethernet port
for a network
connection
HDMI port for
video output
ARM processor
Micro USB
power port
2
OCR Raspberry Pi Getting Started Tutorials
6
Micro USB power port
The micro USB power port is used to power the Raspberry Pi device.
HDMI port
The HDMI output is used to plug into a modern television or monitor.
Ethernet port
The Ethernet port is used to connect the Raspberry Pi to the internet or a local
network.
USB ports
USB 2.0 ports are used to plug in a keyboard, mouse, web cam, external hubs etc.
Audio output
The audio output can be used to plug into an external amplifier or an audio
docking station.
GPIO headers
The GPIO headers are used to connect the Raspberry Pi to other hardware
devices. For example, they can be used to connect to LEDs, motors and other
electronic components.
RCA video output
The video output is used to connect to an older type television.
ARM processor
The ARM processor can be thought of as the brains of the Raspberry Pi.
Hardware
2
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