Glossary
APPENDIX .7
7. APPENDIX
ROM (Read Only Memory)ROM is nonvolatile memory used to store permanent programs (called firmware) used in certain computer components. Flash ROM (or EEPROM) can be reprogrammed with new programs (or BIOS).
SCSI (Small Computer System Interface)High speed
The SDRAM features a fully synchronous operation referenced to a positive edge clock whereby all operations are synchronized at a clock input which enables the coexistence of high performance and a simple user interface. SDRAM takes memory access away from the CPU's control; internal registers in the chips accept the re- quest, and let the CPU do something else while the data requested is assembled for the next time the CPU talks to the memory. As they work on their own clock cycle, the rest of the system can be clocked faster. There is a version optimized for video cards, and main memory for motherboards.
SPD for SDRAM moduleSerial Presence Detect (SPD) is most like an ID detect for SDRAM module, it using a EEPROM component on DIMM module for storing module configuration information inside. The Serial Presence Detect function is implemented using a 2048 bit EEPROM component. This nonvolatile storage device contains data programmed by the DIMM manufacturer that identifies the module type and various SDRAM organization and timing parameters.
SSE (Streaming SIMD Extensions)A set of new instructions added to existing architectures that enables a better visual experience with an accelerated 3D geometry pipeline and support for new applica- tions, such as
A system disk contains the core file of an operating system and is used to boot up the operating system.
UltraDMAUltra DMA/33 is a "synchronous DMA" protocol designed by Intel. This function is included into Intel's PIIX4 chipset. The traditional IDE transfer only uses one edge of the data stroke as the data transfer. Ultra DMA/33 uses both edges of data strobe when the data is transferred. Hence, the data transfer rate is double of the PIO mode 4 or DMA mode 2 (16.6MB/s x2 = 33MB/s) on
Ultra ATA/66, also known as Ultra DMA/66, is an extension of current Ultra ATA/ 33 interface. This new
A
Computer will automatically
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