Simple ATM Simulation

Terminal-based ATM simulator in C++ demonstrating object-oriented design: accounts, PIN authentication, transactions, and an ANSI-colored console UI.

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Overview

A single-file C++ console application that models a small bank ATM. Users authenticate with account ID and PIN, then deposit, withdraw, check balance, or view history. An admin mode supports adding and removing accounts. The UI uses ANSI colors and a short animated splash screen.

Screenshots

Features

• PIN authentication with 3-attempt lockout
• Deposit, withdraw, and balance inquiry
• Per-account transaction history
• Multiple customer accounts plus admin access
• Admin panel — create and delete accounts
• ANSI color UI with animated startup banner

Quick start

Compile and run (from the repository root):

g++ -std=c++17 -o atm "Atm Simulation.cpp" && ./atm

Windows (PowerShell / CMD):

g++ -std=c++17 -o atm.exe "Atm Simulation.cpp"
.\atm.exe

Use Windows Terminal or a modern terminal for full ANSI color support.

Demo credentials

Account	ID	PIN
Shahab Ahmed	1001	1234
Sara Khan	1002	4321
Ali Hassan	1003	0000
Admin	—	9999

What this project demonstrates

• Encapsulation — account data and operations behind classes
• Separation of concerns — UI flow vs. banking logic
• STL usage — containers and strings for account storage
• User input validation — PIN attempts and menu-driven control flow

Project structure

Simple-ATM-Simulation/
├── Atm Simulation.cpp   # Application source
└── README.md

Author

Shahab Ahmed — GitHub · LinkedIn · Portfolio

License

Open source for learning and portfolio use.