Friday, July 30, 2010

How and when to choose your final year Project...

Hmmm... This may be a question to ignore... But the fact is, Project work is something that can change your future. A good and innovative project can make u a multi-billionaire. And selection of project or thinking what to do in project is a tedious process. The best time to select your project is Pre-final year. Start thinking about your project from pre-final year itself or else you really have to suffer a lot if you choose in final year. Because 99% we wont be able to select the project in which we are really interested. Hardware Project is always the best. While recruitment, these project speaks a lot. Even if you don't have enough cgpa scored in exam, these projects will surely get you the job provided the project must be really a good and application oriented.

You need not to be good in aptitude or vocabulary or you need not to be participated in lot of symposiums. Just choose your project good and implement it and you definitely get the job.

And choosing a project itself involves a lot of procedures.

  1. Choose your field of interest. Say DSP, DIP, Embedded Systems or FPGA, WSN, Computer Networks, Security, Wireless communication, Mobile communication, Satelite Comunication.
  2. Then you have to study the in-and -out of the field. Like emerging trends in the particular field, existing technologies apart from what is mentioned in books, register in forum or e-magazines, etc. Search for white papers and all.
  3. After you have done these, you almost secured your future. The next thing you have do is taking decision whether you want to go for hardware project or just a software project.
  4. Hardware project is always the best and difficult. Hardware project itself involves software.
  5. Then you have to choose what kind of software or programming language you are going to use.
  6. And great... you are done. You got prepared for the zeroth review now itself.

Don't take the zeroth review lightly. It's the first gate. once you entered the gate, you have been locked and made your way on your risk.

Choosing of Team Members is also very important. It's not like you have to choose the best CGPA guy/girl. Choose the member in the way that what you can't do can be done by other. Don't worry if you have chosen a high cost project. You can get sponsor if your idea is really good and acceptable. But the most important thing in project is you have to be dedicated and don't always point your finger to other members of the team. Do whatever you can. Be positive.

If you chose your project in pre-final year itself, you just check the dept. site and check out the Prof/Asst. Prof/lecturer 's field of interest and approach him/her and choose as a guide. Choosing guide in final days of your pre-final year is like getting ticket for a blockbuster movie. So book your guide now itself.

Forget about all the theories you have. You can study them in a day before exams. Those won't help to get you the job. Concentrate on what you are and what you can do. Don't loose your self-esteem and self-confidence. Plan your work and work your plan.

Monday, July 5, 2010

What is Noise & What is Distortion?

Yeah, this is a very basic question that the emerging engineers must be able to understand. We are often not sure about the output waveform we see in oscilloscope whether it is distorted or is it a noise. But both are different even though they are unwanted.

What is NOISE?

Noise means any unwanted signal. They are unpredictable.

What is DISTORTION?

A distortion is the alteration of the original shape (or other characteristic) of the given signal. (or)

The behavior of an electrical device or communications system whose output is not identical in form to the input signal.


You can get all the definitions from the site Answers.com

Sunday, March 14, 2010

PACKET SWITCHING NETWORKS FOR DATA TRANSMISSION

Packet Switching:

It refers to protocols in which messages are divided into packets before they are sent. Each packet is then transmitted individually and can even follow different routes to its destination. Once all the packets forming a message arrive at the destination, they are recompiled into the original message.

Most modern Wide Area Network (WAN) protocols, includingTCP/IP, X.25, and Frame Relay, are based on packet-switching technologies. In contrast, normal telephone service is based on a circuit-switching technology, in which a dedicated line is allocated for transmission between two parties. Circuit-switching is ideal when data must be transmitted quickly and must arrive in the same order in which it's sent. This is the case with most real-time data, such as live audio and video. Packet switching is more efficient and robust for data that can withstand some delays in transmission, such as e-mail messages andWeb pages.

A new technology, ATM, attempts to combine the best of both worlds -- the guaranteed delivery of circuit-switched networks and the robustness and efficiency of packet-switching networks.

What is the idea behind it?

Telephones have been around for over one hundred years. When you want to make a call to someone else then a dedicated connection is set up between you. Whilst that call is taking place you both have sole use of the telephone line - no one else can use it. Once the call is finished the connection is broken and the line becomes available for somebody else to use.

This method has worked fine for many years. However, as said above, the line is tied up for the whole length of the call. This is called 'circuit switching'

Now imagine if this method were used in networks. For every person using the network a dedicated line would be needed. Large companies can employ thousands of staff around the world, all logged into the company network at the same time. Imagine how much that would cost to set up? And what about all that cable?

What about the Internet? Nobody owns the Internet, so who would be responsible for setting up and paying for the lines? And worse still could you imagine just how many lines would be needed for everyone to use the Internet at the same time? Impossible.

So this is where 'packet switching' becomes important.

How does packet switching work?

Imagine that you have a data file, perhaps an email or a document which is 2 Megabytes in size. You want to send this file to someone in another country.

When you send the file, it isn’t sent as one document (remember the telephone call), instead it is broken up into lots of small 'data packets'. Our 2MB file would be broken up into chunks of 512 bytes in size.

CLICK TO STUDY MORE......


Electronic Circuits - II Lab Simulation

SDIC Lab Simulated circuits

Microprocessor Lab Programs

1. Click Here to download the programs.
  • 8-bit Addition
  • 8-bit Subtraction
  • 8-bit Multiplication
  • 8-bit Divison
  • 16-bit Addition
  • 16-bit Subtraction
  • 16-bit Multiplication
  • 16-bit Divison
  • Block copy
  • Block Compare
  • Block insert
  • Block Move
  • Block exchange
  • Hex-BCD
  • Hex-Octal
  • Hex-ASCII
  • Array addition
  • Searching an element in an array
  • Digital Clock
  • Flashing Display
  • Rolling Display - Left to Right
  • Rolling Display - Right to Left
  • Stepper Motor Interface
  • Elevator interface
  • Music tone synthesizer
  • Traffic Light Control
  • Serial Communication
2. Assembly language program for finding whether the given no. is prime number or not. Click here to download.


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