| Classical Computing | Quantum Computing |
|---|---|
| Classical Computers are used for classical computing. | Quantum Computers make use of the quantum computing approach. |
| Data is stored in bits. | Data is stored in Qubits. |
| It performs calculations in the form of binary digits. | It performs calculations on the basis of the object's probability. |
| It can only process a limited amount of data. | It can process exponentially more data. |
| Logical operations are carried out using the physical state, i.e., usually binary. | Logical operations are performed using the quantum state, i.e., qubits. |
| Fails to solve too complex and massive problems. | Quantum Computers deals with complex and massive problems. |
| It has standardized programming languages such as Java, C, C++. | It does not rely on any specific programming language. |
| Classical systems are used for daily purposes. | These systems cannot be used for daily purposes as it is complex in nature, and scientists or engineers can use it. |
| It is built with CPU and other processors. | It has a simple architecture and runs on the set of qubits. |
| It provides security to data but limited. | It provides highly secured data and data encryption. |
| Low speed and more time taking systems. | Improved speed and saves much time. |
