I take this opportunity to present my votes of thanks to all those guidepost who really acted as lightening pillars to enlighten our way throughout this project that has led to successful and satisfactory completion of this study.We are really grateful to our HOD Mr. Rohit Dhand for providing us with an opportunity to undertake this project in this university and providing us with all the facilities. We are highly thankful to Miss Sukhdilpreet Kaur for her active support, valuable time and advice, whole-hearted guidance, sincere cooperation and pains-taking involvement during the study and in completing the assignment of preparing the said project within the time stipulated.Lastly, We are thankful to all those, particularly the various friends , who have been instrumental in creating proper, healthy and conductive environment and including new and fresh innovative ideas for us during the project, their help, it would have been extremely difficult for us to prepare the project in a time bound framework.

Organizations over the last few years have expended a considerable effort to protect their internal infrastructure from external compromise. As a result, the organizations have canalized their external network traffic through distinct openings protected by firewalls. The idea is simple. By limiting external connections to a few well protected openings, the organization can better protect itself. Unfortunately, the deployment of a wireless network opens a “back door” into the internal network that permits an attacker access beyond the physical security perimeter of the organization. As a result, the attacker can implement the “parking lot” attack, see figure 1, where the attacker sits in the organization’s parking lot and accesses hosts on the internal network. Ironically in some cases, the existence of the firewall may make the organization’s hosts more vulnerable to the attacker because of the mistaken premise that the hosts are immune from attack and potential compromise.

The injection attack involves "injecting" or forcefully inserting fragments or complete code. This is usually aimed at altering the normal path or execution of the flow of the operation. Injecting is usually done in places where user input is requested, and instead of entering standard inputs, the attacker inserts codes, thus leading to the name, injection attack.

In a traffic injection attack, a cracker can make use of access points that are exposed to non-filtered network traffic, specifically broadcasting network traffic such as “Spanning Tree” (802.1D), OSPF, RIP, and HSRP. The cracker injects bogus networking re-configuration commands that affect routers, switches, and intelligent hubs. A whole network can be brought down in this manner and require rebooting or even reprogramming of all intelligent networking devices.

First and the foremost I would like to thank to my almighty for giving me courage to bring up this term assignment.

At the outset, I would like to propose a word of thanks to my teacher, friends and other sources that gave an unending support and helped me in numerous ways from the first stage of my term assignment conceived.

I would also like to thank my family members for their whole hearted support and cooperation.

I duly acknowledge the contribution of ms. Darvindar kaur for invaluable help. Coding scientific calculator is an uphill task and would have not been possible without proper and timely assistance of ms. Darvindar  Kaur.

I would also thanks to all my friends for forwarding their suggestions to make necessary modifications.

Special thanks to Ms. Darvindar  Kaur for her able guidance in my term assignment

I take this opportunity to present my votes of thanks to all those guidepost who really acted as lightening pillars to enlighten our way throughout this project that has led to successful and satisfactory completion of this study.

We are really grateful to our HOD Mr. Ankur sodhi for providing us with an opportunity to undertake this project in this university and providing us with all the facilities. We are highly thankful to Miss .Darvinder Kaur for her active support, valuable time and advice, whole-hearted guidance, sincere cooperation and pains-taking involvement during the study and in completing the assignment of preparing the said project within the time stipulated.

Lastly, We are thankful to all those, particularly the various friends , who have been instrumental in creating proper, healthy and conductive environment and including new and fresh innovative ideas for us during the project, their help, it would have been extremely difficult for us to prepare the project in a time bound framework.

The title of the project is DIGITAL CALENDAR which is an embedded based project. An embedded project is a combination of hardware and software. Microprocessors and microcontrollers are widely used in such embedded system products. Each embedded system is unique and highly customized to the application at hand. The main basics that includes in embedded programming are either assembly programming or it may be high level languages such as C,C++ or Embedded C. This project ³DIGITAL CALENDAR´ using microcontroller is an advanced digital calendar, which displays the Seconds, Minutes, Hours, Date, Day, month over the LCD display. It has the advantage of setting these features. It has an 8-bit microcontroller which runs on the program embedded in ROM.

The calculator was written by Rolf  Howarth in early 1996. A fully featured scientific calculator with proper operator precedence is implemented, including trig functions and logarithms, factorials, 12 levels of parentheses, logs to base 2 (a handy function for information entropists!), bitwise logical operators, hex, octal, binary and ASCII display.  

The calculator is written in JavaScript and you are welcome to view the JavaScript source (visible within the HTML page) for personal educational purposes as long as you recognize that it is copyrighted and not in the public domain. This calculator is now available as part of hummingbird's Enterprise Information Portal. All enquiries regarding licensing the calculator should be directed to Hummingbird Ltd.

AIM: Write a program in verilog to implement sequence detector(0110/10101)
LEARNING OBJECTIVE:-To make the students familiar with concept of FSM and
how to implement different sequences using FSM
PROCEDURE:
1. Open a new project from the drop down menu by clicking in FILE given on the
top left of the screen.
2. Create a new project and name it.
3. Click on next to enter the device properties.
4. Select the appropriate properties according to the hardware to be used.
5. Click on the next button to enter the new source.
6. Here select the Verilog MODULE and give the file name.
7. Click on next button and enter the entity name.
8. Select the define module.

AIM: Write a program in verilog to implement counters
LEARNING OBJECTIVE:-To make the students familiar with concept of counters i.e. UP DOWN Counter using verilog HDL
PROCEDURE:
1. Open a new project from the drop down menu by clicking in FILE given on the
top left of the screen.
2. Create a new project and name it.
3. Click on next to enter the device properties.
4. Select the appropriate properties according to the hardware to be used.
5. Click on the next button to enter the new source.
6. Here select the Verilog MODULE and give the file name.
7. Click on next button and enter the entity name.
8. Select the define module.

AIM: Write a program in verilog to implement flip flops
LEARNING OBJECTIVE:-To make the students familiar with concept of flip flops i.e D flip flop, T flipflop, SR flipflop and JK flip flop using verilog HDL
PROCEDURE:
1. Open a new project from the drop down menu by clicking in FILE given on the
top left of the screen.
2. Create a new project and name it.
3. Click on next to enter the device properties.
4. Select the appropriate properties according to the hardware to be used.
5. Click on the next button to enter the new source.
6. Here select the Verilog MODULE and give the file name.
7. Click on next button and enter the entity name.
8. Select the define module.
9. Select the ports as input and output and name them.
10. Click on next and then to on finish.