Initializing a Raspberry Pi 3 Setup for Mac IOS

This material has been written by David M Szemple "Hacking the Pi" I am attaching the material for those who want to work with Mac IOS

Raspberry Pi Zero

The Raspberry Pi Zero is half the size of a Model A+, with twice the utility. A tiny Raspberry Pi that’s affordable enough for any project!

1Ghz, Single-core CPU
512MB RAM
Mini HDMI and USB On-The-Go ports
Micro USB power
HAT-compatible 40-pin header
Composite video and reset headers


https://www.raspberrypi.org/products/pi-zero/

Raspberry Pi3

The Raspberry Pi 3 is the third generation Raspberry Pi. It replaced the Raspberry Pi 2 Model B in February 2016. Compared to the Raspberry Pi 2 it has:

A 1.2GHz 64-bit quad-core ARMv8 CPU

802.11n Wireless LAN

Bluetooth 4.1

Bluetooth Low Energy (BLE)

Like the Pi 2, it also has:

1GB RAM

4 USB ports

40 GPIO pins

Full HDMI port

Ethernet port

Combined 3.5mm audio jack and composite video

Camera interface (CSI)

Display interface (DSI)

Micro SD card slot (now push-pull rather than push-push)

VideoCore IV 3D graphics core

The Raspberry Pi 3 has an identical form factor to the previous Pi 2 (and Pi 1 Model B+) and has complete compatibility with Raspberry Pi 1 and 2. If you wish to embed their Pi in a project may prefer the Pi Zero which require very low power.

https://www.raspberrypi.org/products/raspberry-pi-3-model-b/

Difference between Harvard and Von Neumann Computer Architectures

There are basically two types of digital computer architectures. The first one is called Von Neumann architecture and later Harvard architecture was adopted for designing digital computers.

Von Neumann Architecture:

• It is named after the mathematician and early computer scientist John Von Neumann.
• The computer has single storage system(memory) for storing data as well as program to be executed.
• Processor needs two clock cycles to complete an instruction.Pipelining the instructions is not possible 
• with this architecture.
• In the first clock cycle the processor gets the instruction from memory and decodes it. In the next clock cycle the required data is taken from memory. For each instruction this cycle repeats and hence needs two cycles to complete an instruction.
• This is a relatively older architecture and was replaced by Harvard architecture.

Harvard Architecture:

•  The name is originated from "Harvard Mark I" a relay based old computer.
• The computer has two separate memories for storing data and program.
• Processor can complete an instruction in one cycle if appropriate pipelining strategies are implemented.
• In the first stage of pipeline the instruction to be executed can be taken from program memory.In the second stage of pipeline data is taken from the data memory using the decoded instruction or address. 
• Most of the modern computing architectures are based on Harvard architecture.But the number of stages in the pipeline varies from system to system.

 These are the basic differences between the two architectures.A more comprehensive list can be found here with respect to ARM class of processors.

Dream

Dream what u want to dream;
         go where u want to go;
be what u want to be,
         
because u only have one life to live
         and one chance to do all the things u want to do.

My own website :

My Website: Indraneel Mukhopadhyay

Some Important Links:

1. Python Programming

2. Raspberry Pi

A New Beginning 2016