Quantum DLT 2000 Handbook page 192

Byte. The basic unit of computer memory, large enough to hold
one character of alphanumeric data. Comprised of eight bits. See
also bit.
C
CPU. Acronym for central processing unit. The microprocessor
chip or group of chips that perform the bulk of data processing in
a computer.
CRC. Acronym for cyclic redundancy check. An error detection
code that is recorded within each sector and is used to see whether
parts of a string of data are missing or erroneous.
Cache. Specialized RAM used to optimize data transfers between
system elements with different performance characteristics, e.g.,
disk to main memory or main memory to CPU.
Cache Buffering. A technique used in DLTtape drives to reduce
stops, starts, and repositioning delays due to a difference between
the host data rate and that of the DLTtape drive.
Capacity. The amount of information that can be stored on a tape
drive. The data is stored in bytes, and capacity is usually expressed
in megabytes or gigabytes.
Closed-Loop Servo Control. See Advanced Servo Positioning.
Coercivity. The measure of magnetic strength required to change
the magnetic orientation of a data bit stored on tape media.
G.4 GLOSSARY