Tektronix 4014 User Manual page 9

4014 and 4014-1 Users
Interface. The Terminal's Interface applies data from
the Computer to the Terminal's Control circuits. It also
routes data from the Terminal Control Circuits to the
Computer. Any one of several Interfaces may be used with
the Terminal. The choice' in_ direct-connection
applications is dependent upon the specific Computer; in
Modem-connection applications, the choice is dependent
upon the degree of flexibility or communication
sophistication desired.
tion (independent of mode), or Peripheral Device control.
Alpha Mode character writing can occur in any one of
Thick normally is used only for vector drawing.
Although information normally stores when written and
remains visible until erased, a Write-Thru Mode (which
permits information to be displayed without storing) can
be program-selected. Previously stored information
remains visible. Obviously, Write-Thru data must be
repeatedly refreshed to be useful.
REV.B, OCT. 1974
INTRODUCTION
Interactive operation is referred to as Graphic Input or
GIN Mode. A request from the Computer can initiate
transmission of the Terminal's status and/or beam posi-
tion to the Computer. The beam position may be indicative
of the Alpha Mode next-character writing position, the
Graph Mode beam position, or the position of an operator-
controlled crosshair cursor.
_An additional introduction to these operating modes is
provided on the following pages, along with information
about Hard Copy, Local/Line, and View/Hold operation.
Installation and Care of the Terminal
Details regarding installation are provided in the
Appendix. Essentially, installation consists of selecting
Computer (or Modem) and Auxiliary devices (if
applicable). An optional Desk-Mounting Kit can be
ordered to allow the Display Unit to be detached from the
pedestal unit and used for desk-top operation up to ten
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