Vacuum column may refer to
* A device used in
vacuum distillation
* A feature of a
tape drive
A tape drive is a data storage device that reads and writes data on a magnetic tape. Magnetic tape data storage is typically used for offline, archival data storage. Tape media generally has a favorable unit cost and a long archival stability.
...
that serves as a low-inertia magnetic tape buffer:
9-track tape#Typical operation;
Tape drive#Technical problems
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