Micron Electronics NetFRAME LV2000, Руководство пользователя

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Micron Electronics, Inc. C-3
Appendix C: Glossary
Motherboard : See “System Board.”
Non-Volatile Memory : Memory that is maintained even when power is not on.
On-Board Floppy : A floppy disk drive controller that is incorporated into the system
board.
Open : A circuit that is not complete. Usually accomplished by removing a jumper
from two pins on the system board or a peripheral card. Also see “Closed”
and “Jumper.”
Operating System : The software the provides a link between application programs
and the computer hardware (e.g., disks, memory).
PCI : Peripheral Component Interface. A form of local bus architecture that provides
high-speed interconnection without directly interfacing with the processor.
Page Mode : Special function in DRAM that saves up to about 30% in cycle time by not
re-loading RAS bits.
Page : Sections of memory consisting of sets of consecutive bytes. Pages begin on 4-
KB boundaries.
Peripheral Card : A printed circuit board that gives the computer added capability,
such as more memory or control of a new device. A card plugs into one of
the expansion slots located on the system board.
Peripheral : Any device that is connected to the computer system (e.g., printers,
keyboard, plotters, etc.).
Pin : Any of the leads on a device, such as an integrated circuit, that plug into a
socket and connect to a system.
POST (Power On Self Test) : Check-out procedures that the BIOS runs automatically
when the system is turned on. These procedures verify that all computer
hardware is functioning properly. If the test detects problems, the computer
displays error codes before (or instead of) starting the operating system. The
error codes can help a service person determine what is wrong with the
computer.
Program : A set of instructions that a computer interprets to perform some task. Also
see “Application” and “Operating System.”
RAM : Random-Access Memory. The type of computer memory that can be used to
store information while a program is running. RAM consists of a number of
small integrated circuits that are plugged into the system board or an external
memory card.
ROM : Read-Only Memory. The type of computer memory that is used to
permanently store the information vital to computer operation, including
some parts of the operating system. ROM is permanent and the contents will
not be lost when the computer is turned off.