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Boot primitives
Small programs stored in ROM on each processor with the console pro-
gram. Boot primitives read the bootblock from boot devices. There is a boot
primitive for each type of boot device.
Boot processor
The CPU module that boots the operating system and communicates with
the console; also known as the primary processor.
Bootblock
Block zero on the system disk; it contains the block number where the Al-
pha primary boot (APB), OSF/1 boot, or virtual memory boot (VMB) pro-
gram is located on the system disk and contains a program that, with the
boot primitive, reads APB or VMB from the system load device into mem-
ory.
CD-ROM, DEC 7000, VAX 7000 Console CD-ROM
Contains the LFU utility used in upgrading firmware and copies of the
firmware for all modules in the system, including the console and diagnos-
tic firmware.
Centerplane
The LSB backplane, located in the center of the card cage, which physi-
cally shortens the bus thus increasing bandwidth.
CCL module
Module at the top right of the system cabinet that provides the control
panel interface and power sequencing; includes air pressure and tempera-
ture sensors.
CIXCD
XMI CI port interface; connects a system to a Star Coupler.
Compact disk server
In-cabinet CD server (for DEC 7000 systems) or Ethernet-based CD server
(for VAX 7000 systems); provides access to CD-ROMs for software installa-
tion, diagnostics, and on-line documentation.
Glossary-2
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