Advantages of CNC Compared with NC

Computer Numerical Control opens up new possibilities and advantages not offered by older NC machines. Some of those are as following ;

1. Reduction in hardware necessary to add a machine function.
2. The CNC program can be written, stored, and executed directly at the CNC machine.
3. Any portion of CNC program can be played back and edited at will.
4. Many different CNC programs can be stored in the MCU
5. Several CNC machines can be linked together to a main computer. Programs written via the main computer can be downloaded to any CNC machine in the network. This is known as Direct Numerical control or DNC
6. Several DNC systems can be networked to form a large distributive numerical control system
7. The CNC programs can be input from zip or floppy disks or downloaded from local area network