# Introduction
## Definition
## Brief History
# Principles of Quantum Computing
## Quantum Bits (Qubits)
## Superposition
## Entanglement
## Quantum Gates
## Quantum Circuits
# Quantum Algorithms
## Shor's Algorithm
## Grover's Algorithm
## Quantum Fourier Transform
# Quantum Computing Technologies
## Quantum Annealing
## Quantum Simulators
## Universal Quantum Computers
# Current Quantum Computers
## IBM Quantum
## Google Quantum AI
## D-Wave Systems
# Applications
## Cryptography
## Optimization
## Machine Learning
## Drug Discovery
# Challenges and Limitations
## Error Rates and Quantum Decoherence
## Scalability
## Quantum Software Development
# Future Prospects
## Research and Development
## Potential Impact on Industries
## Ethical Considerations
# Conclusion