Epson ActionTower 7500 User Manual - Page 180

Controller, Device, Device driver, Processor., Glossary

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Controller A processor, interface, port, or adapter that translates data between the CPU and a peripheral device, such as a hard disk, diskette drive, keyboard, or video monitor. Controllers convert data from one format to another, match speeds between devices that operate at different speeds, and isolate peripheral hardware from software. CPU Central Processing Unit. The primary device that interprets instructions, performs tasks, keeps track of stored data, and controls input and output operations. See also Processor. Device A piece of computer equipment that performs a specific task, such as a disk drive, a monitor, a printer, or a scanner. Also called a peripheral. Device driver A file containing instructions that allow your computer to recognize and communicate with a device. The device may be a printer, monitor, or other type of device. DIF Dual Inline Package. A type of chip which has two rows of downward-pointing pins. DMA Direct Memory Access channel. A channel for transferring data from your computer to or from peripherals without involving the CPU resources. 2 Glossary

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Controller
A processor, interface, port, or adapter that translates data
between the CPU and a peripheral device, such as a hard disk,
diskette drive, keyboard, or video monitor. Controllers convert
data from one format to another, match speeds between
devices that operate at different speeds, and isolate peripheral
hardware from software.
CPU
Central Processing Unit. The primary device that interprets
instructions, performs tasks, keeps track of stored data, and
controls input and output operations. See also
Processor.
Device
A piece of computer equipment that performs a specific task,
such as a disk drive, a monitor, a printer, or a scanner. Also
called a peripheral.
Device driver
A file containing instructions that allow your computer to
recognize and communicate with a device. The device may be a
printer, monitor, or other type of device.
DIF
Dual Inline Package. A type of chip which has two rows of
downward-pointing pins.
DMA
Direct Memory Access channel. A channel for transferring data
from your computer to or from peripherals without involving
the CPU resources.
2
Glossary