Dell PowerVault 775N (Rackmount NAS Appliance) - Manual (Page 96)

Celsius
CD
compact disc
CGA
color graphics adapter
cm
centimeter(s)
CMOS
complementary metal oxide semiconductor
COM
communications
cpi
characters per inch
cpl
characters per line
CPU
central processing unit
DAC
digital-to-analog converter
DAT
digital audio tape
dB
decibel(s)
dBA
adjusted decibel(s)
DC
direct current