Controller (computing)

In computer hardware, a controller may refer to:

  • Memory controller, a unit that manages access to memory
  • Game controller, a device by which the user controls the operation of the computer
  • Host controller
  • Network controller
  • Graphics controller or video display controller
  • SCSI host bus adapter
  • Network interface controller (NIC)
  • Parallel port controller
  • Microcontroller unit (MCU)
  • Keyboard controller
  • Programmable Interrupt Controller
  • Northbridge (computing)
  • Southbridge (computing)
  • Universal asynchronous receiver/transmitter (UART) communications controller chip
  • Peripheral DMA controller
  • Floppy disk controller
  • Disk array controller, also known as a RAID controller, a type of storage controller
  • Flash controller, or SSD controller, which manages flash memory
  • Terminal Access Controller
  • IBM 2821 Control Unit, used to attach card readers, punches and line printers to IBM System/360 and IBM System/370 computers
  • IBM 270x and IBM 37xx, used for telecommunications
  • IBM 3271, 3272, 3271, and 3174, used to attach terminals (display devices)
  • MIDI controller
  • Programmable logic controller
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