D - What Does That Motherboard Terminology Mean?
Digital Video Interface (DVI):
DVI (Digital Video Interface) is a display/monitor interface standard. There are three types DVI:
DVI-I (digital and analog), DVI-D (digital only) and DVI-A (analog only). Many current display devices use DVI to receive video signals, such as LCD monitors and projectors. For compatibility with these display devices, most video cards today equip the DVI port as a standard output port.
Double Data Rate (DDR):
DDR (Double Data Rate) SDRAM sends and receives data twice as often as common SDRAM. This is achieved by transferring data on both the rising edge and the falling edge of a clock cycle.
Double Data Rate version 2 (DDR2):
Second generation DDR memory provides greater bandwidth and other new features such as On-Chip Termination (OCT). 4 bits of data are moved from the memory array to the I/O buffers (per data line) each core cycle. This can be described as 4-bit prefetch, as opposed to the single-bit fetch in SDRAM and 2-bit prefetch with DDR SDRAM.
Double Data Rate Synchronous Dynamic Random Access Memory (DDR SDRAM):
The latest generation of SDRAM, which reads and writes data at both the rising and the falling edge of the system clock and thus doubles the data throughput, hence the name DDR (Double Data Rate).
It is the software that defines the characteristics of a device for use by another device or other software
In the memory system, this describes a motherboard/memory controller with two 64-bit wide channels. When memory is used in dual channel mode, the bandwidth doubles - for instance, dual channel DDR400 provides 6400MB/s (or 6.4GB/s) bandwidth as opposed to 3200MB/s for single channel DDR400.
Dual In-Line Memory Module (DIMM):
The most common type of memory module is the DIMM (Dual In-Line Memory Module), which is capable of transferring 64 bits of data per cycle.
Dynamic Random Access Memory (DRAM):
The memory cells of DRAM (Dynamic Random Access Memory) memory modules require constant refreshing because they utilize both transistors and capacitors. Capacitors lose the values they store as time elapses without refreshing.