The document discusses three different NSK products:
1. The 8051 Programmer connects via serial or parallel port and programs 8051 microcontrollers. It programs code, lock bits, erases, and verifies.
2. The PIC Programmer programs PIC microcontrollers via serial port and supports various PIC devices. It programs code, lock bits, erases, and verifies.
3. The USB PIC Programmer programs PICs via USB port with auto-programming mode. It programs code, lock bits, erases, verifies, and supports various PIC devices.