In the current scenario, due to the high expectations and rapidly changing demands of the customers’, the majority of manufacturing sectors in developing nations now facing very tough to thrive. As this environment becomes more challenging, it is necessary to switch from conventional manufacturing systems to advanced manufacturing systems, such as CNC, FMS, HFMS, and CIM. This paper’s goal is to give researchers a foundation on which to choose proactive alternatives to CNC. This study’s objectives are to identify the elements that influence the manufacturing system and identify the most effective manufacturing system. For this purpose, different alternate technologies like flexible numerical control (FNC), The intelligent numerical control, open numerical control system, digital signal processor (DSP), and open-architecture CNC have been discussed in detail. The revised definition of an FMS, or FNC, proposed in this work gives room for the creation of more efficient systems and creates new avenues for research. Limitations of traditional FMS, design and working principle of DSP servo control technology, and other related alternate technologies to CNC in FMS have also been discussed in this research.