IBM 6400 Setup Manual page 336

CTS
CVFU
DAVFU
DC
DCD
decipoint
default
descender
diagnostic
disable
DP
draft
DRAM
DSR
DTR
DVFU
Glossary–4 6400 Line Matrix Printers Setup Guide, Cabinet and Pedestal Models
Clear To Send.
Abbrev. for Centronics direct access Vertical Format Unit.
D
Abbrev. for Direct Access Vertical Format Unit. Also known as
NVFU. See also NVFU.
Data Controller.
Data Carrier Detect.
One tenth of a point. A unit of length equal to 1/720 inch.
See also point.
A value, parameter, attribute, or option that is used by a program
or system if another is not specified by the user.
The portion of a printed, lowercase character that appears below
the base line. For example, "g," "j," "p," "q," and "y" all are
characters with lowercase descenders.
Pertaining to the detection and isolation of a printer malfunction
or mistake.
To deactivate, make "false" (0), or set to OFF.
Abbrev. for data processing print. This is a mid–quality,
mid–speed print resolution
A limited dot font used for rough copy. Low print quality but fast
printing speed.
Dynamic Random Access Memory.
Data Set Ready.
Data Terminal Ready.
Abbrev. for Dataproducts direct access Vertical Format Unit.