Ipfs is used to locate and transmit data and exists as an infrastructure; Filecoin is the economic incentive mechanism of ipfs.

Without filecoin, ipfs is difficult to start and work; The continuous development of ipfs provides an important basic support for filecoin, and the popularity of ipfs will affect the demand for safer and more efficient distributed storage filecoin in shopping malls.

Mining machine is the machine where you get filecoin, and ipfs is a technology. What we are talking about is actually mining the incentive layer of this technology, which is filecoin.