Dell PowerEdge 1600SC User Manual

Page 29

Advertising
background image

DIP

 

Acronym for dual in-line package. A circuit board, such as a system board or expansion card, may contain DIP switches for configuring the circuit board. DIP

switches are always toggle switches, with an ON position and an OFF position.

 

directory

 

Directories help keep related files organized on a disk in a hierarchical, "inverted tree" structure. Each disk has a "root" directory; for example, a c:\> prompt

normally indicates that you are at the root directory of hard drive C. Additional directories that branch off the root directory are called subdirectories.
Subdirectories may contain additional directories branching off them.

 

DMA

 

Abbreviation for direct memory access. A DMA channel allows certain types of data transfer between RAM and a device to bypass the microprocessor.

 

DMI

 

Abbreviation for Desktop Management Interface. DMI enables the management of your system's software and hardware. DMI collects information about the

system's components, such as the operating system, memory, peripherals, expansion cards, and asset tag.

 

DPMS

 

Abbreviation for Display Power Management Signaling. A standard that defines the hardware signals sent by a video controller to activate power

management states in a monitor. A monitor is said to be DPMS-compliant when it is designed to enter a power management state after receiving the
appropriate signal from a system's video controller.

 

DRAM

 

Abbreviation for dynamic random-access memory. A system's RAM is usually made up entirely of DRAM chips. Because DRAM chips cannot store an electrical

charge indefinitely, your system continually refreshes each DRAM microprocessor in the system.

 

drive-type number

 

Your system can recognize a number of specific hard drives. Each is assigned a drive-type number that is stored in NVRAM. The hard drive(s) specified in your

System Setup program must match the actual drive(s) installed in the system. The System Setup program also allows you to specify physical parameters
(logical cylinders, logical heads, cylinder number, and logical sectors per pack) for drives not included in the table of drive types stored in NVRAM.

 

DTE

 

Abbreviation for data terminal equipment. Any device, such as a system, that can send data in digital form by means of a cable or communications line. The

DTE is connected to the cable or communications line through a data communications equipment (DCE) device, such as a modem.

 

DVD

 

Abbreviation for digital video disc. A read-only optical storage device that has greater capacity and bandwidth than CD. You can use DVD for multimedia and

data storage.

 

ECC

 

Abbreviation for error checking and correction.

 

ECP

 

Abbreviation for Extended Capabilities Port.

 

EEPROM

 

Acronym for electrically erasable programmable read-only memory.

 

EIDE

Advertising