First of all, it provides space for the power supply, main board, expansion boards, floppy disk drive, disk drives, hard drives and other storage devices, and through the internal chassis brace, various screws or clip clip connections such as these parts are fixed in the machine box, the overall shape of a intensive.
Secondly, its solid shell protects the boards, power and storage devices, and it can resist pressure, shock and dust.
It can also play the role of electromagnetic interference and radiation, shielding electromagnetic radiation.
It also provides a lot of easy to use panel switch indicator light and so on, allowing the operator to operate the microcomputer more easily or to observe the operation of the microcomputer. We know the cabinet and let the cabinet serve us well.