Which of the following devices are computers?
In fact, they all are!
They all have a way of getting information into a computer, through an input device.
Your keyboard,
mouse,
microphone,
camera,
games controller
and touch screen are all input devices.
Once you’ve input the information, the computer makes decisions and organizes it.
A bit like how our brain handles information that we gather through our senses.
This is called processing.
Your brain also stores information for use later on.
It’s no different for a computer.
The information is stored in a computer's memory.
After processing the information, the computer gives you the results by putting it somewhere
useful, like on a screen or onto paper via a printer,
or even by playing sound through speakers.
So you see, all these devices are computers because they have the same arrangement for
inputting, processing, storing and outputting information.
Even your Raspberry Pi!
It has a processing chip or CPU, that does calculations.
The RAM or memory stores information the computer is working on, and the graphics chip controls
the images that you see on the screen.
These tracks carry electrical signals between the components allowing them to communicate
with each other.
The USB ports link to devices like your keyboard and mouse, and the ports here help connect
to headphones through the speaker jack and a screen through the HDMI port.
The Raspberry Pi also has these pins which allow you to connect it to even more circuitry
and control objects like lights and motors to create fabulous contraptions!
On the back, you’ll find a slot for a micro SD card. This is used to store the software
you need to interact with all this hardware
Let me show you how.
You’ll need to use a computer that has an SD card port, and an internet connection to
visit raspberrypi.org/downloads
The simplest option is to download and save the NOOBS zip archive of the operating system.
Anything that’s stored on the SD card will be overwritten during formatting. So if the
card you’re using has any files you want to keep,like photos, make sure that you copy
them to another computer.
You’ll need an application like SD Formatter, to help you format the card.
Insert your SD card into the computer and make a note of the drive letter allocated to it.
Select the drive letter for your SD card, and then format the card.
Select all the files in the NOOBS folder you downloaded earlier and copy them into the
SD card window
Once the files have all been copied over, you can eject it.
Now let’s get everything connected in the right order to see your Raspberry Pi working safely.
First, insert the MicroSD card into your Raspberry Pi.
Next we need some input and output devices. Connect your mouse and keyboard, to one of
the USB ports on the Raspberry Pi.
Plug in and turn on your monitor, and connect it to your Pi with a HDMI cable, like this.
Sound will come from your screen if it has speakers
or you can connect headphones to the audio jack.
What about power? Your Raspberry Pi doesn’t have a power switch: as soon as you connect
it to a power outlet, it will turn on, so we always do this last.
Plug a micro USB power supply into a socket and connect it to your Pi - you should see
a red LED light up. As it starts, you will see raspberries appear in the top left-hand
corner of your screen, followed by the NOOBS installer. This software will walk you through
installing the Raspbian operating system.
You can customise your Raspberry Pi software to set the right time, date and language for
your location in the Pi setup wizard. You’ll also be able to connect your Pi to wifi and
check for any software updates.
There are lots of applications to help get you started on your digital making and computing
journey, so why not take a look at them using the menu system.
Hopefully, your Raspberry Pi now looks and feels more like a computer.
In our next video, we’ll take a closer look at those applications, and write a computer
program using code. See you then!
[Sally] So they stop...that's...
[Brian] They're just coming up out of frame there.
[Brian] So, yeah, there.
[Carrie Anne] Yeah, like 'Tragedy'
[Sally sings a line from the song Tragedy]
[Sally] I mean, that also was just as I was hitting maybe aged six?
[Carrie Anne] Awww, Jeez...
[Brian] Ready?
[Sally] Yeah.