Controller (computing)
(重定向自Controller card)
![IBM 1311 Disk Drives. Model 3 (on right) contains an integrated controller for itself and up to 3 Model 2s (on left).[1]:p.2](/uploads/202501/06/BRL64-IBM_1311_DiskDrives2417.jpg)
In computing and especially in computer hardware, a controller is a chip, an expansion card, or a stand-alone device that interfaces with a peripheral device. This may be a link between two parts of a computer (for example a memory controller that manages access to memory for the computer) or a controller on an external device that manages the operation of (and connection with) that device.