Computer Networks by Andrew S. Tanenbaum (4th and 5th Eds. - Free PDF)

In this post you will download Computer Networks 4th and 5th Editions Free PDF by Andrew S. Tanenbaum

Appropriate for Computer Networking or Introduction to Networking courses at both the undergraduate and graduate level in Computer Science, Electrical Engineering, CIS, MIS, and Business Departments.

Table of Contents

Computer Networks by Andrew S. Tanenbaum covers the following subjects in difference chapters;
  • INTRODUCTION
  • THE PHYSICAL LAYER
  • THE DATA LINK LAYER
  • THE MEDIUM ACCESS CONTROL SUBLAYER
  • THE NETWORK LAYER
  • THE TRANSPORT LAYER
  • THE APPLICATION LAYER
  • NETWORK SECURITY
  • READING LIST AND BIBLIOGRAPHY

Download Computer Networks Pdf

You can download Computer Networks by Andrew S. Tanenbaum from the links below. If any link is dead please feel free to leave a comment.
Download here (5th Ed.)
Download here (4th Ed.)
Download here (4th Ed. - Solution Manual)
Read More

Bad to the Bone: Crafting Electronics Systems with Beaglebone and BeagleBone Black

In this post you will download  Bad to the Bone: Crafting Electronics Systems with Beaglebone and BeagleBone Black free pdf file

Bad to the Bone provides detailed materials for both novice and experienced programmers using all BeagleBone variants which host a powerful 32-bit, super-scalar TI Sitara ARM Cortex A8 processor.
Steven F. Barrett and Jason Kridner the authors of this book, is a seasoned ECE educator along with the founder of Beagleboard.org, respectively, the work may be used in a wide variety of projects from science fair projects to university courses and senior design projects to first prototypes of very complex systems.
As for the begineers, Beginners may access the power of the "Bone" through the user-friendly Bonescript examples. Seasoned users may take full advantage of the Bone's power using the underlying Linux-based operating system, a host of feature extension boards (Capes) and a wide variety of Linux community open source libraries.
Bad to the Bone: Crafting Electronics Systems with Beaglebone and BeagleBone Black  contains background theory on system operation coupled with many well-documented

Table of Contents

 Bad to the Bone: Crafting Electronics Systems with Beaglebone and BeagleBone Black   covers the following;
  • Getting started
  • System design: programming
  • BeagleBone operating parameters and interfacing
  • BeagleBone systems design
  • BeagleBone features and subsystems
  • BeagleBone "off the leash"
  • Where to from here?

Download  Bad to the Bone pdf

You can download  Bad to the Bone from the download button below. If any link is dead please feel free to leave a comment.
Download here
Read More

Learning BeagleBone - Free Download

In this post you will download  Learning BeagleBone free pdf file

The BeagleBone is a microboard computer that offers all the possibilities of a larger PC in a miniaturized package. After going through this book you will get started on the road to utilizing the power of the board to achieve its full potential.
'Learning BeagleBone' covers right from unboxing, showing you the absolute basics of using your new BeagleBone to give you the knowledge you need to be a responsible BeagleBone owner and to integrate the microboard into your projects. Begin by learning about the software behind your purchase before moving on to your first simple project on building an LED flasher using the LEDs on the BeagleBone itself.

Table of Contents

 This book  Learning BeagleBone covers the following subjects;
  • Introducing the Beagle Boards
  • Software in the BeagleBone
  • Building an LED Flasher
  • Refining the LED Flasher
  • Connecting the BeagleBone to Mobile Devices
  • Recovering from the Mistakes
  • Interfacing with the BeagleBone
  • Advanced Software Topics
  • Expansion Boards and Options

Download  Learning BeagleBone PDF

You can download  Learning BeagleBone free pdf from the download links below. If any link is dead please feel free to leave a comment.
Download here
Read More

Network and Web applications using Raspberry Pi, Arduino and Teensy - Free Download

In this post you will download Network and Web applications using Raspberry Pi, Arduino and Teensy - Free pdf Download 

The Popular Raspberry Pi miniature computers and small development boards operating in real-time environment can be used together for designing complex and powerful measurement and control systems.
As the high-level programming environment of Raspbian OS running on the Raspberry Pi can be applied for high-level data processing, and the real-time signal processing will be performed by some popular and low-cost development board such as Arduino or Teensy 3.1. There are some great benefit of such configurations is that a developer doesnot need to build external circuitry that may take a long time.
Network and Web applications using Raspberry Pi, describes how to build measurement systems that will include Raspberry Pi 2, Arduino Uno or Teensy 3.1 developments boards and will be controlled over a TCP/IP network or the Internet using a Web browser. Almost all applications from this guide use USB-to-Serial interfaces between Raspberry Pi, Arduino or Teensy 3.1.

Table of Contents

 Network and Web applications using Raspberry Pi, Arduino and Teensy  cover the following projects
  • Switching Arduino digital outputs
  • Reading Arduino digital inputs
  • Reading Arduino analog inputs
  • Designing a programmable DC voltage source with Teensy 3.1
  • Generating sine waves with Teensy 3.1
  • Driving Arduino digital outputs over a TCP/IP network
  • Reading digital inputs over a TCP/IP network
  • Reading analog inputs over a TCP/IP network Raspberry Pi Web applications: a brief introduction
  • Raspberry Pi Web applications: installing the Apache Web server
  • Raspberry Pi Web applications: using server-side scripts
  • Raspberry Pi Web applications: running CGI scripts on the Apache Web server
  • Driving Raspberry Pi 2 GPIO outputs over the Internet
  • Reading Raspberry Pi 2 GPIO inputs over the Internet
  • A digital-to-analog converter driven over the Internet
  • A Web-controlled pulse width modulator
  • Configuring trapezoidal signals from the Teensy DAC over the Internet
  • Reading the analog channels of Teensy 3.1 over the Internet

Download  Network and Web applications using Raspberry Pi

You can download  Network and Web applications using Raspberry Pi, Arduino and Teensy. If any link is dead please feel free to leave a comment.
LINK 1
LINK 2
Read More

Electromagnetic Fields and Waves by Magdy F. Iskander (Free PDF Download)

In this post you will download Electromagnetic Fields and Waves by Magdy F. Iskander 

An in-depth understanding of electromagnetics is important to all electrical engineers regardless of specialization. Iskander presents the phenomena associated with electromagnetic fields and waves without bogging down the reader with equations and mathematical relations, keeping emphasis on the interesting subject and exciting applications of electromagnetics.
Electromagnetic Fields and Waves by Magdy F. Iskander  describes the properties of the static electric and magnetic fields in terms of their charge and current sources before introducing Maxwell's equations.
Electromagnetic Fields and Waves by Magdy F. Iskander  include a detailed description of reflection and refraction of plane waves of oblique incidence on a dielectric surface, a detailed introduction to antennas, comprehensive treatment of transmission lines, and an introductory section on numerical techniques. Many examples are used in each chapter to demonstrate the physical interpretation of vector operations and electromagnetic field quantities

Table of Contents

Electromagnetic Fields and Waves by Magdy F. Iskander   covers the following topics

  • VECTOR ANALYSIS AND MAXWELL'S EQUATIONS IN INTEGRAL FORM
  • MAXWELL'S EQUATIONS IN DIFFERENTIAL FORM
  •  MAXWELL'S EQUATIONS AND PLANE WAVE PROPAGATION IN MATERIALS
  • STATIC ELECTRIC AND MAGNETIC FIELDS
  • NORMAL-INCIDENCE PLANE WAVE REFLECTION AND TRANSMISSION AT PLANE BOUNDARIES
  • OBLIQUE INCIDENCE PLANE WAVE REFLECTION AND TRANSMISSION
  • TRANSMISSION LINES
  • WAVE GUIDES
  •  ANTENNAS

Download Electromagnetic Fields and Waves PDF

You can download Electromagnetic Fields and Waves by Magdy F. Iskander from the links below. If any link is dead please feel free to leave a comment.
Download book in three parts
Read More

Electronic Devices and Circuits - 2nd Ed. by David A. Bell (Free PDF Download)

 In this post you will download  Electronic Devices and Circuits  free pdf

 Electronic Devices and Circuits

Electronic Devices And Circuits, written by David A. Bell, delves into the latest technology and provides information on topics ranging from semiconductors to RC and LC Supply Filters.

Electronic Devices and Circuits  covers all the principles that will help readers understand the working of electrical devices and the detailed circuitry involved. Targeting electronic appliances, the author has emphasised on device operation, characteristics of each device, and circuit applications. This book has been specifically written for undergraduate students who are pursuing their engineering in fields like Electronics, Instrumentation, Electrical, Electronics and Communication.

Table of Contents
  •  Electronic Devices and Circuits  cover the following topics
  • Basic Semiconductor Theory
  • PN-Junction Theory
  • FET Biasing
  • Basic FET Circuits
  • The Tunnel Diode
  • The Silicon Controlled Rectifier
  • ircuit Fabrication
  • Transistor Specifications and Performance
  • The Unijunction Transistor
  • Optoelectronic Devices
  • Miscellaneous Devices
  • Electron Tubes
  • The Semiconductor Diode
  • The Junction Transistor
  • Transistor Biasing
  • Basic Transistor Circuits
  • Transistor and Integrated C
  • Basic Multistage and Integrated Circuit Amplifiers
  • Basic Sinusoidal Oscillators
  • Zener Diodes
  • Field Effect Transistors

Download Electronic Devices and Circuits PDF

You can download this book from any of the following links. If any link is dead please feel free to leave a comment.
Read More

Solid State Pulse Circuits by David A. Bell (Free PDF Download)

In this post you will download  Solid State Pulse Circuits by David A. Bell  for free 

 Solid State Pulse Circuits

Solid State Pulse Circuits by David A. Bell  is intended for use in electronics technology courses in colleges and universities. It should also be useful as a reference text for practicing electronics technicians, technologists, and engineers.

Table of Contents

  • WAVEFORMS
  • CAPACITIVE RESISTIVE (CR) CIRCUITS
  • DIGITAL COUNTING
  • DIGITAL FREQUENCY METERS AND DIGITAL VOLTMETERS
  • PULSE MODULATION AND MULTIPLEXING
  • THE SCHMITT TRIGGER CIRCUIT
  • RAMP GENERATORS 153
  • MONOSTABLE AND ASTABLE MULTIVIBRATORS
  • BISTABLE MULTIVIBRATORS
  • DIODE SWITCHING
  • TRANSISTOR SWITCHING
  • THE INVERTER CIRCUIT
  • LOGIC GATES
  • SAMPLING GATES

 Solid State Pulse Circuits PDF

You can download this book from any of the following links. If any link is dead please feel free to leave a comment.
Read More

How to Restore Dead UPS Battery

In this post i will teach you a simple trick on how to restore dead battery for your UPS

With power crisis becoming associate epidemic across the globe, frequent power outages are no surprise. Some countries have to bear load shedding for 12-14 hours on a daily basis. UPS comes as a savior for the people of these countries because it provides backup power supply once the grid supply goes away.

UPS with battery

The main cost concerned in running a UPS are the batteries that ought to get replaced each 2-3 years. Today, we can reveal you an easy trick that has been utilized by Geeks for many years to grant a second life to batteries.
For this to work, all you need may be a pack of Epsom salt and distilled water. Epsom salt is commonly obtainable from any huge chemist shop since epsom salt has several cosmetic uses also. Some chemists call it magnesium sulphate thus ask for both the names at the chemist.


  • epsom salt
  • Once you have these two things, follow the instructions below:



Take 2/3 cup of Epsom salt (MgSO4) and add it into 2 cups of distilled water.
Heat the solution on a stove in an exceedingly sauce pan until Epsom salt is completely dissolved within the water.
Disconnect and safely remove battery from the UPS.
Wear safety equipment ( Gloves and safety glasses)
Open the filler caps of the battery.

Battery filler caps

Add an equal quantity of the MgSO4/H2O solution into every filler hole of the battery until you have consumed all the solution.
Replace filler caps and put the battery on charging.

Thats it, now you must to wait for about a week because the condition of the battery can begin to boost by every passing day. The cells can de-sulphate and the battery will begin to grant higher backup time by every passing day. The battery should provide best performance in 8-10 days. You can use this trick once each passing year and use your UPS battery for an additional two years.

Hope you liked the tutorial. Do try out this low-cost and straightforward trick on your dead batteries and allow us to shrewdness it went within the comments section below.
Read More