|
(k&n-trōl´er) (n.) A device that controls the transfer of data from a computer to a peripheral device and vice versa. For example, disk drives, display screens, keyboards, and printers all require controllers. In personal computers, the controllers are often single chips. When you purchase a computer, it comes with all the necessary controllers for standard components, such as the display screen, keyboard, and disk drives. If you attach additional devices, however, you may need to insert new controllers that come on expansion boards. Controllers must be designed to communicate with the computer's expansion bus. There are three standard bus architectures for PCs -- the AT bus, PCI (Peripheral Component Interconnect), and SCSI. When you purchase a controller, therefore, you must ensure that it conforms to the bus architecture that your computer uses.
Sponsored listings
Industrial Controls
-
Industrial product directory allows users to send RFQs, view catalogs and compare suppliers. Find suppliers of Industrial Controls.
Save up to 50% on Industrial Automation Controls
-
Fast Shipping on thousands of process control products - PLCs, relays, AC Drives/Motors, sensors, pushbuttons, switches, Operator HMI panels and more.
Monitouch HMI: Manual Controls
-
Supplier of high-quality operator interface panels. Products are available and fully supported throughout North and South America
|
