RASPBERRY PI : ALL YOU NEED TO KNOW !!!!!

RASPBERRY PI: KNOW EVERYTHING 

The Raspberry pi is a single computer board with credit card size, that can be used for many tasks that your computer does, like games, word processing, spreadsheets and also to play HD video. It was established by  the Raspberry pi foundation from the UK. It has been ready for  public consumption  since 2012 with the idea of making a low-cost educational microcomputer for students and children. The main purpose of designing the raspberry pi board is, to encourage learning, experimentation and innovation for school level students. The raspberry pi board is a portable and low cost. Maximum of the raspberry pi computers is used in mobile phones. In the 2st century, the growth of mobile computing technologies is very high, a huge segment of this being driven by the mobile industries. The 98% of the mobile phones were using ARM technology.

What Is the Raspberry Pi?

The Raspberry Pi was created with the goal of education in mind. This ultra-tiny computer was designed to be small and cheap so that schools could easily afford them in order to teach students about computers in the classroom. This is great for two reasons, the first is that it provides extremely cheap access to a computer, and second it is a great tool for learning more about computers (student or not)!

So how cheap are we talking exactly? Well, there are two versions of the Raspberry Pi, the model A is $25 and the model B is $35. This price point makes it pretty easily available to students, hobbyists, and even yours truly!

Let’s talk about what the Raspberry Pi has on it. In the model B, you get an HDMI out, RCA video out, 2 USB ports, an SD card slot, a head phone jack, and an Ethernet port. The board itself has half a gigabyte of RAM and an onboard ARM processor.

The model A has all of the same features of the model B minus one of the USB plugs, the Ethernet port, and half of the RAM.

No matter how you look at it though, it gives you quite a bit of equipment to work with for not being much bigger than a credit card!

How Does the Raspberry Pi Work?

Let me break it down to you. Every Pi usually has a CPU , RAM, various ports, Wifi and Bluetooth. This model in the image, which is RPi 3 model B, requires about 1 Amps of power which you can supply through the Micro USB slot using your old cell phone charger. Under powered Pis will shut down immediately which can cause some serious damage it so be sure to read the manuals first. Also, you may have to Amp it up if you are using pendrives. The 4 USB ports can used to connect wireless keyboard and mouse. HDMI port is included so that you can connect it to a monitor.

The 1.2GHz 4-core CPU is enough to perform light tasks and play games like Minecraft Mobile Edition. However, throwing in a heat sink will allow you to watch videos(IN OSMC) for a longer time. In layman terms, consider Pi as a naked yet powerful version of Intel’s stick PC but PIs are more customisable.

Different Types of Raspberry Pi Models

The different types of raspberry pi models are following

• Raspberry Pi 1 model B
• Raspberry Pi 1 model A
• Raspberry Pi 1 model B+
• Raspberry Pi 1model A+
• Raspberry Pi Zero
• Raspberry Pi 2
• Raspberry Pi 3 model B
• Raspberry Pi Zero W

  COMPARISON BETWEEN DIFFERENT VERSIONS                               

	Raspberry pi 3 model B	Raspberry pi 2 model B	Raspberry pi         model B+
Ethernet Port	Yes	Yes	Yes	No
GPU	Videocore IV	Videocore IV	Videocore IV	Videocore IV
Processor Speed	1.2GHz Quad-core processor	900MHz Quad core processor	700MHz Single core processor	700MHz Single core processor
Wi-Fi	Built-in	No	No	No
Bluetooth LE	Built in	No	No	No
Storage	Micro SD	Micro SD	Micro SD	Micro SD
Processor Chipset
RAM	1 GB SDRAM of 400MHz	1 GB SDRAM of 400MHz	512 MB SDRAM of 400MHz	256 MB SDRAM of 400MHz
GPIO	40 Pin	40 Pin	40 Pin	40 Pin
USB 2.0	4 x USB Port	4 x USB Port	4 x USB Port	1 x USB Port
Maximum power draw/voltage	The maximum power is about 2.5A and voltage is 5V	The maximum power is 1.8A and voltage is about 5V.	The maximum power is 1.8A and voltage is about 5V.	The maximum power is 1.8A and voltage is about 5V

To Set Up & Start your Raspberry Pi

The Raspberry Pi board comes equipped with an SD card. This slot permits us to insert an SD card and that can use it as our devices. The SD card is a main storage device for raspberry pi board like a hard disk of a personal computer. The bootable Linux operating system is loaded onto the card, you are planning to use. The raspberry pi supports Linux, Qtonpi, ARM, Mac operating systems. You can select one OS; you will need to write it to an SD card using a Disk manager application. You can also use other storage mechanism, like USB external hard drive or USB drive. There are a numerous brands of SD cards are available in the market in  different sizes. The raspberry pi supports max 64 GB SD card.

Before you start your raspberry pi, you are going to need to connect a display, keyboard, mouse like as a PC. It supports three different O/Ps like  HDMI video, composite video, and DSI video, where the DSI video needs some specific hardware. When you buy a raspberry pi board it may sold with or without an SD card. It is a very important specification  in raspberry pi board. Because, it keeps its operating system, documents and programs. If your raspberry pi did not come with an SD card, then the min size you should get is 4GB.
Advantages of the raspberry pi is, it is small in size, and it works as a normal computer at low cost server to handle web traffic.

Applications of Raspberry Pi

The raspberry pi boards are used in many applications like Media streamer, Arcade machine, Tablet computer, Home automation, Carputer, Internet radio, Controlling robots, Cosmic Computer, Hunting for meteorites, Coffee and also in raspberry pi based projects.