ATM Simulation System (C++)

This project is a console-based ATM Simulation System developed in C++ for Programming Fundamentals.

It simulates basic ATM functionalities such as:

• User authentication using account number and PIN
• Balance inquiry
• Cash withdrawal
• Cash deposit
• PIN change
• File handling for data storage

Features

• Secure login with 3 attempts
• Check account balance
• Withdraw money with validation
• Deposit money
• Change PIN
• Data stored in file (account.txt)
• Simple and user-friendly menu

Technologies Used

• Programming Language: C++
• Libraries: iostream, fstream
• Platform: Windows / Linux
• Interface: Console-based

How to Run

1. Open the project in Code::Blocks, Dev-C++, or Visual Studio.
2. Compile and run atm.cpp.
3. Default login credentials:
   • Account Number: 12345
   • PIN: 0000

File Structure

ATM-Simulation-System/ │ ├── atm.cpp ├── account.txt └── README.md

Limitations

• Single user system
• No real bank connection
• No encryption
• Console-based only

Future Enhancements

• GUI version
• Database integration
• Multi-user support
• Transaction history
• OTP / biometric authentication

Author

Air University Karachi Campus
Department of Computer Science
Programming Fundamentals Project