Glossary-2
Sun Blade 1500 Service, Diagnostics, and Troubleshooting Manual
• December
2004
C
cache
A smaller, faster accessible set of memory used to speed up operations of
CPUs, storage, and networking components. Typically found within the
component it serves.
CDE
Common Desktop Environment.
CD-ROM
Compact disc read-only memory. A CD-ROM drive reads data recorded on the
CD-ROM optical disc.
CD-RW
Rewritable compact disc.
CODEC
(1) Coder/decoder. A CODEC uses analog-to-digital conversion and digital-to-
analog conversion in the same chip.
(2) compression/decompression. An algorithm or computer program for
reducing byte consumption in large files and programs.
D
DDC2
Display data channel version 2. DDC2 is the I
2
C interface used to communicate
with the monitor. This interface is the same for both the HD15 and DVI-I
connectors.
DDR-1 SDRAM
Double data rate synchronous dynamic random access memory.
default
A preset value that is assumed to be correct unless changed by the user.
DIMM
Dual inline memory module. A printed circuit card that contains dynamic
random access memory chips. See Registered DIMM.
DMA
Direct memory access. The transfer of data directly into memory without
supervision of the processor. The data is passed on the bus directly between
the memory and another device.
DRAM
Dynamic random-access memory. A read/write dynamic memory in which the
data can be read or written in approximately the same amount of time for any
memory location.
drive rails
Mounting hardware used to secure hard drives and other peripherals inside
the workstation.
D-TLB
Data translation look-aside buffer.
DVD-ROM
Digital versatile disc read-only memory.
Summary of Contents for Sun Blade 1500
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