Network attached storage (NAS) is a centralized file server that allows multiple users to store and share files over a TCP/IP network by way of wifi or an Ethernet cable.| www.ibm.com
Return on investment (ROI) is a performance measure used to evaluate the efficiency of an investment or compare the efficiency of several investments.| Investopedia
An API is a set of rules or protocols that enables software applications to communicate with each other to exchange data, features and functionality.| www.ibm.com