Hey guys.
Welcome to this video lecture.
In this video lecture we are going to see what is a Raspberry Pi and what is single board computer.
So let us get started so Raspberry Pi is a most famous and best selling credit card sized single board
computer.
It is continuously designed and developed by Raspberry Pi Foundation.
I say it continuously because many generations of Raspberry Pi single board computers have been designed
and developed and out there in the market.
So that begs the question what is a single board computer.
So let us try to understand what a single board computer is.
So before that we need to review the definition of our stop computers so traditional computers like
Dexter PCs and laptops have the following replaceable and upgrade able components Usually any next stop
or laptop will have a CB you a motherboard at our medals fixed on the motherboard.
OK so you can actually take the RAM modules out.
You also how replaceable graphics card discrete graphics card.
That is what it is called and many times graphics card are some graphics capabilities are also embedded
in the motherboard and sometimes we also have the customized cooling.
So all these things for a PC can be upgraded or replaced.
So suppose you are graphics card is not very powerful then and you want to play the latest game then
you can just go ahead and replace your graphics card.
If it is a discrete graphics card so you can do anything with the motherboard graphics but definitely
you can go ahead and change the discrete graphics card.
If you think that you were processor is not actually very powerful to run the latest application you
can change the processor and if the new process it is not compatible with the motherboard then you can
also change the motherboard if you think that you are Ram is not enough.
Then you can add extra RAM chips to the motherboard if there are any empty slots.
And if you think that your cooling solution is not up to the mark and if your view is overheating then
you can replace the cooling and add customised cooling so these are the advantages of the regular extra.
Computers are laptops but actually it comes with a cost.
So the first thing is that these computers are not very good for embedded applications.
I mean you can't actually get your text drops and lab laptops and plug them in to some sort of sensor
designed Whiting and make them run the programs that are required for real time monitoring and all.
You can definitely do Internet of Things with you other traditional computers so we have something like
single board computers so single word computers are also known as as sees how all these parts on a single
printed circuit board that is of the size of a credit card.
So usually most of these single board computers they will be very very small and many of them will be
off credit card size so Raspberry Pi is a prime example of that.
All these parts are embedded on that single PCV which is of the size of credit card and individual components
of as bases are not replaceable or upgraded.
So if you think that as this easy lad power then you cannot go ahead and randomly replace the processor
or upgrade them.
That is not feasible but it comes with certain advantages that the size of.
As we see these very low and also the cost of production of As visas is very low.
So you can actually replace an entire SBC.
If a new model of a single board computer has come to the market so Raspberry Pi is one such single
board computer that is very famous.
It is of the size of a credit card and it is the best selling single board computer of today's era.
In fact the entire single board computer movement of the current century I would say has been sparked
by the production of raspberry by itself.
It is not that raspberry pi is the first single bold computer.
There have been many other single word computers before Raspberry Pi but the current trend of single
board computers and IAP is really boosted by the presence of Raspberry Pi in the market.
So this is the Raspberry Pi single bold computer to be very specific.
This is a Raspberry Pi Model T B plus.
This is the latest model that I have as of a recording of this video and let us see why we call Raspberry
Pi.
A single bold computer
as you can see here all the required components for a fully functioning computer are present on this
particular PCV.
So this is the processor This is the ram chip
this is the HDMI ball.
This is the audio jack.
This is the landfall.
And these early U.S. reports.
This is the Connector Board for a camera.
And this is the Connector Board for a screen.
Also there is a provision for inserting the microwaves decoder which acts as a secondary storage medium
for this particular single work computer.
Now let us see why we call it as a credit card sized computer.
Now you can compare my hand against the size of it as many single computer still if you are unable to
get the idea about the size of Raspberry Pi a single ball computer.
Then I'm going to open my visiting card holder and this is my business card.
And this is my business card against the Raspberry Pi the size of my business card is equal to the size
of a credit card.
And as you can clearly see the size of the Raspberry Pi is almost equal to a credit card.
That's why Raspberry Pi is quite a credit card sized single board computer.
These fish only be authorized by and any other single board computers is almost all of them.
How GPI opens GPI or stand for a general purpose input and output.
So from this angle probably you are not getting a very good view of the GPL options that are there.
Here on this Raspberry Pi PCV so that we change the orientation.
And here now you can help the clear view of all the GPL options authorized by computer.
OK.
So for this model there are 40 pins in total and the numbering starts from here.
This has been number one two three four five six seven eight nine 10 and all the way up to be number
39 and PIN number 40.
So these pins can be used to connect Raspberry Pi single board computer with dissenters and any other
devices.
So this is all about the Raspberry Pi and single ball computer so we will be using Raspberry Pi as a
normal computer when it comes to software project and we are going to use these GPO pins of the Raspberry
Pi computer when it comes to hardware projects
so we are going to keep on exploding the hardware as well as software capabilities of Raspberry Pi furthering
this course.
I hope that you understood all the concepts that I have explained in this video lecture.
Thanks a lot for watching this video lecture and I will see you next time.