Asus PCI-SC896 User Manual - Page 30
Appendix - pci memory controller driver
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4. Appendix DMA Bus Master - A feature that allows a peripheral to control the flow of data to and from system memory by blocks, as opposed to PIO (Programmed I/O) where the processor is in control and the flow is by byte. Device Driver - A program that allows a microprocessor (through the operating system) to direct the operation of a peripheral device. Differential - A hardware configuration for connecting SCSI devices. It uses a pair of lines for each signal transfer (as opposed to single-ended SCSI which references each SCSI signal to a common ground). Dword - A double word is a group of 4 consecutive bytes or characters that are stored, addressed, transmitted, and operated on as a unit. The lower two address bits of the least significant byte must equal zero in order to be dword aligned. EEPROM - Electronically-Erasable Programmable Read Only Memory. A memory chip typically used to store configuration information. See NVRAM. EISA - Extended Industry Standard Architecture. An extension of the 16-bit ISA bus standard. It allows devices to perform 32-bit data transfers. External SCSI Device - A SCSI device installed outside the computer cabinet. These devices are connected in a continuous chain using specific types of shielded cables. Fast SCSI - A standard for SCSI data transfers. It allows a transfer rate of up to 10 Mbytes/s over an 8-bit SCSI bus and up to 20 Mbytes/s over a 16-bit SCSI bus. FCC - Federal Communications Commission. File - A named collection of information stored on a disk. Firmware - Software that is permanently stored in ROM. Therefore, it can be accessed during boot time. Hard Disk - A disk made of metal and permanently sealed into a drive cartridge. A hard disk can store very large amounts of information. Host - The computer system in which a SCSI host adapter is installed. It uses the SCSI host adapter to transfer information to and from devices attached to the SCSI bus. Host Adapter - A circuit board or integrated circuit that provides a SCSI bus connection to the computer system. Internal SCSI Device - A SCSI device installed inside the computer cabinet. These devices are connected in a continuous chain using an unshielded ribbon cable. 4. Appendix 30 ASUS PCI-SC896 User's Manual