Lenovo PC 300GL Understanding Your Personal Computer 6267, 6277, 6287 - Page 60
Display Power Management Signaling DPMS, Display Data Channel DDC
View all Lenovo PC 300GL manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 60 highlights
perform complex mathematical operations in parallel with other operations. cycle. (1) An interval of space or time in which one set of events or phenomena is completed. (2) A complete vibration, electric oscillation, or alternation of current. D daisy chain. A method of device interconnection for determining interrupt priority by connecting the interrupt sources. data. (1) A re-interpretable representation of information in a formalized manner suitable for communication, interpretation, or processing. (2) Any representations such as characters or analog quantities to which meaning is or might be assigned. data bus. A bus used to communicate data internally and externally to and from a processing unit, storage, and peripheral devices. DDC. Display Data Channel decibel (dB). A unit that expresses the intensity of a sound. decimal. Pertaining to a system of numbers to the base 10; decimal digits range from 0 through 9. default. Pertaining to an attribute, condition, value, or option that is assumed when none is explicitly specified. device. A mechanical, electrical, or electronic piece of equipment designed to serve a special purpose or perform a special function. device driver. A file that contains the code needed to use an attached device. diagnostic. Pertaining to the detection and isolation of errors in programs and faults in equipment. diagnostic program. A computer program that is designed to detect, locate, and describe faults in equipment or errors in computer programs. digital. (1) Pertaining to data in the form of digits. (2) Contrast with analog. 52 DIMM. Dual inline memory module direct memory access (DMA). The transfer of data between memory and input/output devices without microprocessor intervention. diskette. A small magnetic disk permanently enclosed in a rigid or semi-rigid protective jacket. diskette drive. The mechanism used to seek, read, and write data on diskettes. It can be installed in, or attached to, a computer. disk swapping. A form of memory management whereby if additional memory is needed for the active programs, the operating system transfers the least-used information from memory to the hard disk to make more memory available. When the transferred information is needed, it is exchanged with other information in memory. Display Data Channel (DDC). An industry standard for passing monitor configuration information between a monitor and the attached personal computer. Plug and Play technology is used to provide automatic performance optimization for the monitor. A DDC-enabled computer can interpret configuration information from a DDC-enabled monitor and then set the display mode that best uses the capabilities of the monitor. Display Power Management Signaling (DPMS). A monitor feature that makes it possible for the attached personal computer to safely lower and manage the power consumption level of the monitor, based on defined modes of inactivity of the keyboard and mouse. The power level can be progressively lowered each time the monitor is placed into the next mode-from On, to Standby, to Suspend, to Off. To take advantage of this feature, the monitor must be used with a computer and operating system that are hardware and software enabled for DPMS. If the monitor is attached to a video adapter, the adapter must also be DPMS enabled. DMA. Direct memory access. DMI. Desktop Management Interface DPMS. Display Power Management Signaling