LSI SYM8953U manual File, Firmware, Hard Disk, Host Adapter, Internal Scsi, Kbyte, Local Bus

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	A SCSI device installed inside the computer cabinet. These devices are
Device	connected in a continuous chain using an unshielded ribbon cable.
IRQ	Interrupt Request Channel. A path through which a device can get the
	immediate attention of the computer’s CPU. The PCI bus assigns an IRQ
	path for each SCSI host adapter.
ISA	Industry Standard Architecture. A type of computer bus used in most
	PCs. It allows devices to send and receive data up to 16 bits at a time.
Kbyte	Kilobyte. A measure of computer storage equal to 1024 bytes.
Local Bus	A way to connect peripherals directly to computer memory. It bypasses
	the slower ISA and EISA buses. PCI is a local bus standard.
Logical Unit	A subdivision, either logical or physical, of a SCSI device (actually the
	place for the device on the SCSI bus). Most devices have only one logical
	unit, but up to eight are allowed for each of the eight possible devices on
	a SCSI bus.
LUN	Logical Unit Number. An identifier, zero to seven, for a logical unit.
LVD Link	Low Voltage Differential link allows greater Ultra2 SCSI device
	connectability and longer SCSI cables. LVD Link lowers the amplitude of
	noise reflections and allows higher transmission frequencies. Detailed
	information may be found in Section 1.3.4, “LVD Link Technology”.
Mainboard	A large circuit board that holds RAM, ROM, the microprocessor, custom
	integrated circuits, and other components that make a computer work. It
	also has expansion slots for host adapters and other expansion boards.

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