DMA (direct memory access)

The process of transferring data directly between memory and peripheral devices without microprocessor intervention.

Double click

Press twice, in rapid succession, on a mouse button.

DPMS (data power-management signaling)

Describes monitors that can conserve power when the system is inactive by blanking the screen.

Drag

To press and hold down the left mouse button when the mouse pointer is positioned over an object, and then move the mouse to a new position and release the mouse button. The object moves along with the mouse pointer to the new position.

Drive

A hierarchical organization of directories, stored on a disk. A drive usually corresponds to the medium stored in a specific physical storage device, such as a floppy disk in a disk drive. See directory, directory tree, subdirectory.

Driver

See Device driver.

ECP (extended capabilities port)

Aparallel port that supports bi-directional and DMA data transfer.

EPP (enhanced parallel port)

Aparallel port that supports high-speed, bidirectional data transfer.

Extended memory

System memory above 1 MB that can be accessed directly by some operating systems.

FDISK

A DOS utility program that enables you to create partitions, which DOS can recognize as a drive, on a hard disk. FDISK

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