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Glossary
OCP
See operator control panel.
OpenVMS Alpha operating system
A general-purpose multiuser operating system that supports AlphaGeneration computers in
both production and development environments. OpenVMS Alpha software supports
industry standards, facilitating application portability and interoperability.
operating system mode
The state in which the system console terminal is under the control of the operating
system. Also called program mode.
operator control panel
The panel that contains the startup/diagnostic display, dc On/Off switch, Halt switch, and
Reset switch.
PALcode
Alpha Privileged Architecture Library code, written to support Alpha processors.
PALcode implements architecturally defined behavior.
PCI
Peripheral Component Interconnect. An industry-standard expansion I/O bus that is the
preferred bus for high-performance I/O options. Available in a 32-bit and a 64-bit version.
PCI-to-EISA bridge
The capability to transfer commonly available EISA and ISA options to the PCI bus.
powercycle
A process initiated by pressing the reset switch, that causes the system to reinitialize and
redisplay its startup display.
power-up
The sequence of events that starts the flow of electricity to a system or its components.
RAID
Redundant array of inexpensive disks. Technique that organizes disk data to improve
performance and reliability. RAID has three attributes:
•
It is a set of physical disks viewed by the user as a single logical device.
Glossary - 8
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Table of Contents
Troubleshooting
