Tektronix 4023 User manual

TEKTRONIX
R
4023
COMPUTER
DISPLAY
TERMINAL
USERS
INSTRUCTION
MANUAL
Tekt ronix , Inc.
P.O. Box 500
Beaverton , Oregon 97005
Serial Num ber
070-1621-00
773

WARRANTY
All Tekt ronix
inst rum ent s
are warrant ed
against
defective
m at erials and workm anship for one year .
Addit ionally
, all
Tekt ronix
Com put er
Display
Term inals
and
related com put er
peripheral
equi pm ent are
fully
warrant ed
against
ANY trouble for
the fi rst
90
days . Any
equi pm ent trouble
occurring to your
Tekt ronix
com put er
t erm inal or
related products
during the 90 day
period
will
be repaired
by Tekt ronix
personnel
at no
charge .
Questions
regarding
warrant y
should be
discussed
with your
Applicat ions
Engineer .
Specifications and
price change
privileges
reserved .
Copyright
 1973 by
Tekt ronix ,
Inc. , Beaverton
, Oregon .
Printed in the Unit ed
States of Am erica
. All right s
reserved .
Content s of this publication m ay not be reproduced in any
form
without perm ission
of
Tekt ronix , Inc.
U.S.A. and
foreign
Tekt ronix
products
covered
by U.S.
and
foreign patent s and / or
patent s
pendi ng .
TEKTRONIX
is a
regist ered t radem ark
of
Tekt ronix , Inc.

4023 Users
About This Manual
Table of Content s
GENERAL INFORMATION
INDEX
Part 1
Introduction
SECTION 1
OPERATOR’S
MANUAL
Part 2
Controls
Part 3
Using the
4023
Part 1
Program m ing
SECTION II
TECHNICAL USER’S MANUAL
Part
2
Installation
APPENDIX
A
Characterist ics
APPENDIX B
ASCII Code Chart
APPENDICES
APPENDIX C
Accessories
APPENDIXD
Form at t ing
a
Display
APPENDIX E
Glossary

4023 Users
About This
Manual
This m anual will acquaint the operator and the technical user with the
capabilities and operation of the Tekt ronix 4023 Com put er Display
Term inal .
Sect ion | cont ains inform ation im port ant to the operator . It begins with
an int roduct ion to the 4023 including a basic descript ion of 4023 operation
in a data
processing
system
, the
purpose of
the 4023
, and
laym an’s
descript ion of Term inal features . Sect ion | also cont ains a descript ion of
Term inal cont rols , including Keyboard keys , console switches , console
indicat ors , and special function keys . Short operational descript ions are
provided to
assist in
cont rol
fam iliarizat ion
.
1
Sect ion Il cont ains inform ation from a m ore technical point of view .
Here the technical user will fi nd program m i ng inform ation , strappable
opt ion inform ation , inst allat ion inform ation , etc.
Appendices
at the
rear of the
m anual
cont ain
addit ional
inform ation
to
aid the user in
achieving
m axim um
efficiency from the
4023 .
A glossary
is included
list ing the
technical t erm s
associated
with the
4023
.
A topical index
follows the
Table of
Content s .

4023 Users
CONTENTS
TABLE OF CONTENTS
SECTIONI
INDEX
PART
1
INTRODUCTION
Page
You and the
4023
General
What the 4023
Is
Dat a
Processing
Dat a Retrieval
Dat a
Ent ry
Inquiry -
Response
Accessories
The
4023
In a
Dat a Processing
System
Operat ing
Modes
Transm i tt ing
Receiving
Local
Operat ion
Hard
Copy
Operat ion
1-1
1-1
1-1
1-1
1-2
1-2
1-2
1-3
1-3
1-4
1-5
1-6
1-7
1-8
PART 2
THE
CONTROLS
General
Purpose
of
Controls
Console Controls and Indicat or
Keyboard
Controls
Funct ion Controls
Power and
Display
Controls
Rear Panel
1-9
1-9
1-12
1-14
1-16
1-18
1-18
PART
3
OPERATION -
USING THE 4023
Introduction
Term inal /
Com put er
Connection
Set
These
Swit ches
Turning
Power On
and
Adjusting Display
Becom ing
Fam ili ar
with
Keys
Erasing the Display
Num eric
Keyboard
Hom e
Cursor
Dual
Funct ion
Keys
Edit ing
Keys
and
Operat ion
Becom ing
Fam ili ar with
Operat ion
General
Direct Mode
Roll -
Up
Buffer Mode
Buffer
Operat ion
Buffer
Form
Fill -
Out
Operat ion
Prot ect ed
Fields
Non Alpha Fields
Field
Ident ificat ion
Exam ple of
Form Fill - Out
Operat ion
Conclusion
1-19
1-19
1-19
1-19
1-20
1-20
1-21
1-21
1-21
1-22
1-23
1-23
1-23
1-24
1-24
1-24
1-26
1-27
1-27
1-27
1-28
1-30
A
1

4023 Users
CONTENTS
( cont .
)
SECTION II
PART 1
PROGRAMMING
Page
Introduction
Input / Out put Configurat ion
Sum m ary of Term inal Configurat ion
Code Effect
General
Code Set
Control Codes
Control
Character
Perform ance
Storage
Message
End
Character
Edit Key
Effects
Com put er
Controlled Edit ing
Funct ions
Form at Effectors
Display Form at t ing
General
The Field At tribute Code
Setting
the
Field
At tribute
Code
Non
-
Alpha
Fields
Sam ple Input String
Posit ion Cursor
Read Cursor
4023
Program Tim e
Delays
Fill Characters
Sum m ary
of ASCII
Code Effect
Rulings Character Set ( Optional )
Introducti on
Rulings Character Set Organizat ion
Finding
the
Character
Sim ple Join
Characters
Com plex Join Characters
Miscellaneous
Characters
Single Elem ent Characters
Sum m ary
2-1
2-1
2-2
2-2
2-2
2-2
2-2
2-2
2-2
2-3
2-3
2-3
2-3
2-3
2-3
2-3
2-4
2-4
2-4
2-5
2-6
2-6
2-7
2-10
2-10
2-10
2-10
2-11
2-12
2-12
2-12
2-12
PART 2
INSTALLATION
General
Mount ing the
Term inal
Select ing Operat ing Voltage and Fuse Size
Select ing Strappable Options
Spare Swit ch ( SW1 and SW2 ) Connections
Spare Indicat or Connection
Connectors
and
Wiring
Connecting the Term inal to a Com put er
Direct Connection
Telephone
Line
Connection
2-14
2-14
2-14
2-16
2-16
2-16
2-16
2-16
2-16
2-21
APPENDIX CHARACTERISTICS
APPENDIX B
ASCII CODE
CHART
APPENDIX C
ACCESSORIES
APPENDIX
FORMATTING
A
DISPLAY
APPENDIX E
GLOSSARY
II
( A )

4023 Users
INDEX

D
accessories 1-3 , C - 1
address
2-5
auxiliary devices 1-5 ,
through 1-8 , 1-13 , C - 2
B
backspace 2-7
BACKSPACE key 1-15 ( def . )
back tab
1-14 , 2-3
baud rate 2-6
Baud Rat e Select or 1-18 ( def . ) , 1-24
BEL cont rol
char . 2-7 , 2-9 , B - 1
bell 1-27 , 1-28
Blink Cursor Strap 2-2 , Fig . 2-9
BS cont rol char .
2-3 , 2-6 , 2-7
BREAK key 1-15
( def . )
BRIGHTNESS cont rol 1-18 ( def .
) , 1-19
buffer 1-5 , 1-13 , 1-14 , 1-16 , 1-23 , 1-24 , 2-1 , 2-3 , 2-7 , 2-8
Buffer Form
Fill - Out 1-23 ,
1-24 , 1-26
Buffer Form
Fill - Out Ent ry (
t ransm ission
) 2-9
buffer
operation ,
sum m ary A
- 2
buffer
t ransm ission 1-16 ,
1-17 , 1-25
, 1-26 ,
1-30 , 2-1 ,
2-2
data
1-1
data entry 1-2
data entry
form s 1-2
data
processing 1-1
( def . )
data
retrieval
1-2
delete charact er 1-22 , 2-2 , 2-4
delete line 1-23 , 2-2 , 2-4 , 2-6
DEL L - DEL C key 1-16 ( def . ) , 1-22 , 1-23
desk
m ount ing 2-14
direct 1-5 , 1-13 , 1-14 , 1-18 , 1-23 , 2-3 , 2-7 , 2-8
direct entry (
t ransm ission )
1-24 , 2-1
DIRECT / BUFFER switch 1-5 , 1-13 ( def . ) , 1-18 , 1-23
direct ion
connect ion
2-16
display 1-10
display
backgrounds (
video )
1-27
display
form att ing
1-10 , 2-1
, 2-3
display size
A - 1
display writ ing 1-3
dual
Funct ion keys 1-21
E
C
echo 1-5 , 1-14 , 1-18 , 1-23 , 2-1 , 2-4
ECHO switch 1-18 ( def . ) .
edit functions 1-10 , 1-22
editing ,
in DIRECT
1-23
editing , program 1-23
edit keys 2-4
encoded data 1-5
End charact er 2-1 , 2-5
enter 2-2 , 2-7
enter
sequence
1-5 ,
1-24 , 2-1 , 2-4
EOL LF GEN strap 2-1 , 2-8 , Fig . 2-8
erase input 2-2 , 2-3
, 2-6
erasing the display 1-20 , 1-21
erasing
unprot ect ed
data 1-21
ERASE
TO
END key
1-16 ( def . ) , 1-27
, 1-30 , 2-2 ,
2-3 , 2-6
ESC 2-2 , 2-3 , 2-5 , 2-6 , 2-8 , 2-9
ESC key 1-14 ( def . )
ETX
cont rol charact er 2-2 , 2-7
.
F
carriage
return 2-8
carriage
return
t ransm ission
2-1
charact er , end of
m essage 2-1
charact eristics , 4023 A - 1
charact ers 2-1
charact ers per display A - 1
charact ers per line A - 1
charact ers
per
second rate 2-6
clear ( erase ) page 1-14 , 2-2 , 2-6 , 2-9
clear input 2-9
code effect 2-2
, 2-7
code translat ion
2-7
com m unicat ion link 1-3 , 2-16 , 2-21
com plex joins 2-10 , 2-11
com put er display
t erm inal 1-1 , 1-9
com put er
entry
( to
t erm inal ) 2-3
CONTRAST cont rol 1-18 (
def . ) , 1-19
cont rols 1-9 , through 1-18
cont rol charact er ( s ) 1-14 , 1-16 , 2-1 , 2-2 , 2-6
cont rol
charact er storage 2-2
cont rol charact er t ransm ission 2-2
cont rol com m ands 1-2 , 1-6 , 1-14
cont rols , function ( see function cont rols )
cont rol
sequences 2-2
COPY key 1-17
( def . ) , 2-9
CR cont rol
charact er 2-1 , 2-2 , 2-3 ,
2-6 , 2-8
CR
DOES
LF
strap
2-1 ,
Fig . 1-8
,
CTRL key
1-14 ( def . ) , 1-25
, 2-3
cursor 1-19 , 1-22 , 1-23 , A - 1
cursor blink 2-2
cursor BLINK strap 1-16 , Fig . 2-9
cursor
coordinat e t ransm ission
2-10
cursor m ovem ent
1-18 ( key def . ) ,
1-20 , 2-1
cursor
m ovem ent in
data
t ransm ission 1-25
FAC 2-3 , 2-7 , 2-9 , D - 1
FF cont rol charact er 2-3 , 2-9
fi eld at tribute code ( s ) 1-2 , 1-14 , 2-2 , 2-3 , 2-4 , 2-7 , 2-9 , D - 1
fi eld ident ificat ion 1-27
fi eld
separat or 2-9
fi ll charact ers 2-6
flagged int erfaces 2-1
form s 1-6
form at effect ors 2-3
form att ed display 1-13 , 1-14 , 1-16 , 1-17 , 1-23 , 1-24 , 1-26 , 2-4
form att ing a display ( exam ple ) D - 1
form fi ll - out 1-28 , 1-30
FS cont rol charact er 2-4 , 2-8
full duplex 2-1
function cont rols 1-9 , 1-11
fuse , operating 2-15
A
III

4023 Users
INDEX
( cont . )
G
M
GS cont rol charact er 2-5
m agnetic tape 1-1
Make Copy Com m and 1-4 , 1-8
m em ory
1-4 , 1-5
,
1-24 , 2-1
Message End Character 2-2 , Fig . 2-8
Message Separat or 1-17 , 1-24 , 1-25 , 1-26 , 2-2 , 2-7 , 2-8
m odem 2-21
m onit or connect or 1-18
m ot herboard 2-16 , 2-20
I
half duplex 2-1
hard copy
2-9
hard copy unit 1-3
, 1-4 , 1-8 , 1-17 ,
2-9 , C - 2
Hard Copy
Unit
connect or 1-18 , 2-16
hard copy
operation
1-4
hom e 1-14 ,
1-17 , 1-19 , 1-20
, 1-21 , 1-24
, 2-3 , 2-7 ,
2-8
HOME key 1-17 ( def . ) , 1-30
hom e posit ion 1-14
( def . )
HT cont rol charact er 2-3 , 2-7
N
.
non - alpha fi elds
1-27 , 1-30
, 2-4
non - form att ed displays 1-23 , 1-24
NUL cont rol charact er 2-2 , 2-3 , 2-6 , 2-9
num eric keyboard 1.17 , 1-21
NUM LOCK key 1-17 ( def . ) , 1-21
1
O
on line 1-4 , 1-12 , 1-13 , 1-23 , 1-24 , 1-26 , 2-1
opt ional
accessories
C
- 1
indicat ors 1-9 , 1-11
indicat or , spare 1-13
init ial condition 1-14
input
fi eld 2-7
input /
output A - 1
insert charact er 1-22 , 2-3
insert line 1-23 , 2-3 , 2-6
INSL - INS C key 1-16 ( def . ) , 1-22 , 1-23
inst allat ion 2-14
int erface 1-3,1-4 , 1-6 , 2-16 , 2-21

J
PAGE - ERASE INPUT
key 1-14 ( def
. ) , 1-21 , 1-27 ,
1-30
page
full
2-1
posit ion
cursor
operation
2-2 , 2-4
, 2-5
POWER indicat or 1-13 ( def . )
power
requi rem ent s
A -
1
POWER switch 1-18 ( def . )
program
t im e
delays
2-6
Prom pt
Character 2-2 ,
2-6
PROMPT MODE
strap 2-1 , Fig . 2-8
protected
data
2-4
protected fi elds 1-12
, 1-16 , 1-26 , 1-27
, 1-28
join types ,
rulings
2-10
K
keyboard A - 1
KEYBOARD LOCK indicat or 1-12 ( def . ) , 1-24 , 1-27 , 1-28 , 1-30
keyboard function
( purpose of ) 1-10
keyboard ,
num eric 1-21
R
L
LF
cont rol
charact er 2-1 , 2-6 ,
2-7
LF
DOES CR strap 2-1
, Fig . 2-8
LF key 1-15 ( def
. ) , 1-20
line
feed 1-24 , 2-1 ,
2-3 , 2-7
local 1-4 ,
1-7 , 1-12 ,
1-13 , 1-24 ,
1-26 , 1-28 ,
2-1
local echo 2-1
LOCAL
/ ON
LINE
switch
, 1-4 ,
1-12 ( def . ) ,
1-23 , 1-28 , 2-1
local
operation
1-7
read cursor operation 2-2 , 2-5 , 2-10
receiving
1-4 , 1-6 ,
2-1
refresh rate A - 1
repeat
key entry
1-20
RESET key 1-16 ( def . ) , 1-25 , 1-27 , 1-30 , 2-2
RETURN key 1-15 ( def . ) , 1-25 , 2-1
roll - up 1-24 , 2-1 , 2-3 , 2-6
RUBOUT
key
1-15 ( def . ) , 2-6
ruling
form ula
2-10
rulings
charact er set 2-10 through
2-13
rulings
charact er set
select
2-8
rulings
t ransm ission
2-9
ruling
types
2-10
IV
A

4023
Users
INDEX
( cont
. )
S T
t erm inal cont rols 1-9 , 1-11
t ransm ission 1-24 , 1-25
t ransm it ted
1-5
t ransm it ting 1-4 , 1-5 , 1-30 , 2-1
TTY LOCK key 1-14 ( def . )
U
sam ple input string 2-4
screen
1-10
send 1-5 , 1-9 , 1-26
, 2-4
SEND
-
ENTER key 1-5 ,
1-17 ( def .
) , 1-24 ,
1-26 , 1-30
send
t ransm it table only
2-9
SHIFT key 1-14 (
def . ) , 1-21 ,
1-25 , 2-3
S1
cont rol
charact er
2-8
,
2-9
,
sign on procedure 2-21
sim ple joins 2-10 , 2-11
SO
cont rol
charact er 2-8 ,
2-9 , 2-10
SPACE 2-3
SPARE
indicat or
1-13
SPARE
switches 1-12 ,
1-13
standard
accessories
C
- 1
standard charact er set select 2-8
storage m edium
1-2
strappable opt ions 2-1 , 2-16 ,
2-18 , 2-19 , Fig . 2-8
, Fig . 2-9
unprot ect ed
data
2-4
unprot ect ed fi eld 1-14 , 1-26 , 1-28 , 1-30 , 2-3 , 2-7
US cont rol charact er 2-3 , 2-9
V
video A - 1
video
connect or 2-16
video m onit or 1-3
volt age , operating select 2-14 , 2-15
VT
cont rol
charact er 2-3 , 2-8
T
TAB key
1-14 ( def . ) ,
1-30 , 2-7
tab stop 1-14
telephone line
connect ion 2-16 , 2-21
t erm inal busy 2-1
W
WAIT
Indicat or
1-12
(
def . ) ,
1-24
,
1-30
,
A
V

2093
TEKTRONIX
Ws
KRAK
.
Fig . 1-1 . The
4023 Com put er
Term inal
4023 Users
A

4023
Users
INTRODUCTION
SECTIONI
PART 1
YOU AND THE 4023
General
This
inform ation will
provide
you with
a basic
underst anding
of
the
Tekt ronix 4023
Com put er
Display
Term inal
,
and help in
its
operation .
When , in reading the following , you com e upon an unfam i liar term or
phrase , refer to the Glossary . If m ore detailed inform ation is desired on a
subj ect , refer to the index . There you will fi nd page references for addit ional
inform ation
about the
subj ect .
What The 4023 ls
The 4023 Com put er Display Term inal is an inst rum ent which enables
exchange
of
inform ation
between people and
com put ers
. The
4023 is a
" com put er display t erm inal  because it is the start ing and stopping point for
inform ation to
and
from the
com put er . As
the
Term inal
operator
,
you will
need to
know
how
to use
the 4023
effect ively to
obt ain
,
input , or
change
the
com put er
inform ation .
Before we go int o m ore detail about the 4023 , it m ight be a good idea to
review som e
of the basics of
data
processing . The
following
discussion briefly
describes
the
part that
you and the
Tekt ronix
4023
perform
in
processing
data .
Dat a
Processing
 Dat a Processing " is the work involved in processing the inform ation or
records required by your com pany to conduct its business . There’s the
payroll , the inventory , the sales , engineering , and ot hers  depending on the
part icular business your com pany is in . The data processing job is m ore
rapidly and accurat ely perform ed by using the 4023 connect ed to a
com put er
system
.
First , all the data necessary to run your com pany’s business is input to
the com put er system , where it is stored on a m edium such as m agnetic tape .
This data can be input to the com put er using the 4023 keyboard .

)
1-1

4023
Users
INTRODUCTION
( cont . )
Dat a
Processing
( cont . )
Once the system has all the inform ation , and the inst ructions describing
how to m anipulat e the inform ation , your assigned task can be perform ed .
For exam ple , depending on the inst ructions , inquiries , etc. , that you type
int o the com put er from the keyboard , the com put er will call from storage
the part icular data required and use it by sort ing , testing , and com put ing to
arrive at the answer or inform ation you want . The com put er then t ransm it s
the results to the 4023 , where they are displayed on the screen .
The 4023 can display inform ation in response to operator or program
select ion ;
however
, the
Term inal’s
response is
not
restricted to
writ ing on
the
screen
. It
can also
perform a
variety of
functions in
response
to "
cont rol 
com m ands . These
functions
include
( but
are not
li m it ed to )
cont rolling the
display
form at ,
switching
Term inal
operations
from one
m ode to
anot her ,
ringing the
Term inal’s
bell ,
and
cont rolling
output s from
and
input s to the
Term inal .
.
There are
three
basic types of
data
processing
that
the
4023 will
perform ; data retrieval , data entry , and inquiry - response .
Dat a Retrieval
As a
data
retrieval
device , you
will
use the
4023 to
obt ain
inform ation
on subj ect s
such as
bank
balances ,
credit reports ,
inventory
reserves , or
m ot or
vehicle
regist rations
. Again
, the
inform ation
retrieved
depends on
your
com pany’s
business
.
Keyboard
entry
is
brief ;
usually
there
is
just
enough
to
ident ify
the
data
you wish
to
retrieve .
Once the
data
is
ident ified
,
the
com put er
responds
with
the
specified data
.
Dat a
Ent ry
As a data
entry
device , the 4023
is used
to enter new
data to
the
com put er
, or to up
- date data
previ ously
stored in the
com put er
. The only
output s from
the
com put er will
be
operational
inst ructions
for you ,
or data
entry
form s to
aid in
speeding
up
data
entry .
You will
fi nd
that the
excellent
editing
capabilities
of the
4023
,
coupled with
the
abilit y of the
display
data
to be "
form att ed , " great ly
sim plify
the data
entry
operation .
Inquiry -
Response
This is a m ode of operation in which the operator and com put er carry on
a " conversat ion " . Here , the operator uses the keyboard to enter , to the
com put er ,
inquiries
that are
based on
previ ous
com put er -
calculat ed
results .
The " conversat ion " that results between the operator and the com put er is
displayed on the screen . Using the 4023 in this m anner is helpful to
program m ers
,
engineers
, designers
,
and ot hers
who creat e
and use
the
com put er
program
in a
step - by
-
step
fashion .
1-2

4023 Users
INTRODUCTION
( cont . )
Accessories
Accessory devices are offered for the 4023 to help you and your
com pany
m ore
effect ively use
the
Term inal in a
com put er
system
.
Accessories for the 4023 include video m onit ors , digital m agnetic storage
unit s , and hard copy unit s . A hard copy unit is a device that , when
connect ed to the 4023 , can m ak e paper ( hard copy ) reproduct ions of
inform ation displayed on the Term inal’s screen .
Wit h the preceding inform ation in m ind , Fig . 1-2 can be m ore readily
underst ood . This fi gure illustrat es the Term inal’s posit ion in a data
processing
system .
The
4023 In A
Dat a
Processing System
Dat a from a com put er is sent to the Term inal via a com m unicat ion link .
The com m unicat ion link m ay be a direct connect ion , or m ay be special
equi pm ent that connect s the Term inal and com put er using telephone lines .
( Addit ional inform ation on the Term inal and com put er connect ions is
provided in the Part 2 of Sect ion 11. ) The Term inal’s int erface applies the
received data to the Term inal Control circuit s , which cause eit her display
writ ing or cont rol execut ion , depending on the coded cont ent of the
incom i ng signals .
AUXILIARY
DEVICES
Com m uni cati on
Link
HS
....
.....
Interface
va
3DX
MT TTT
HARD
COPY
UNIT
Display
Term inal
Control
URDUODUODU
Den
DO
IOG
360000
COMPUTER
Keyboard
TERMINAL
Fig . 1-2 . 4023 posit ion in a data processing system .
1-3

4023 Users
INTRODUCTION
( cont . )
Dat a
Processing
System
( cont . )
Dat a entered from the keyboard can be rout ed direct ly through the
Term inal Control circuit s , the Interface , and thence to the com put er ,
by -
passing the
Term inal
m em ory .
If a data
 echo "
exist s ,
the data
is
processed by the Term inal circuit s and displayed . Dat a is not always sent
direct ly
to the
com put er
from the
keyboard
. Keyboard
data
can be fi rst
stored in the Term inal m em ory , edited , then t ransm it ted to the com put er .
When a Make Copy com m and is given by any source ( com put er ,
Term inal
, or
at the
Hard
Copy
Unit ) , the
Hard Copy
Unit
takes cont rol
of
the Term inal
, ext ract s the
display inform ation , and
reproduces
the
display
on
paper
.
Operat ing
Modes
You will
norm ally
operate the
Term inal
" on line
" with the
com put er
, as
select ed by
the LOCAL
/ ON LINE switch
( this switch
can be
placed in the
LOCAL
posit ion
for
operator
training ,
using the
Term inal
with
auxiliary
devices
independent
of the
com put er
,
repair , etc.
) .
The
basic On
Line
operations
are
Transm i tt ing
and
Receiving .
An
int roduct ion
to
these
operations is
given
in the
rem ai nder of
this
sect ion ,
along
with a
brief
descript ion
of
Local and Hard
Copy Operat ion
.
1-4

4023
Users
INTRODUCTION
TRANSMITTING
COMPUTER
When
t ransm it ting , data
entered
at
the
keyboard is sent
to the com put er as indicat ed by this fi gure .
Dat a to the com put er is encoded to indicat e the specific
charact er
which is
entered
by
the
operator
.
Dat a
m ay
also
be
t ransm it ted
from
auxiliary
devices to the
com put er , or
m ay be sent from the keyboard to the auxiliary devices .
Wit h the
DIRECT
/
BUFFER
switch
at
DIRECT
, no
act ion is taken on the data by the Term inal unless an
" echoing " condition exist s , under which circum st ance the
4023 accepts it as received data . Wit h the DIRECT /
BUFFER
switch
at
BUFFER
,
data
entered at the
keyboard
is stored in
the
Term inal
m em ory
and
displayed
; it is
not
t ransm it ted unt il the operator act ivates an Ent er or Send
sequence
using
the
SEND
/ ENTER
key .
....
TECH
MIT
HAOOOOUUOD
BOO
AUXILIARY
DEVICES
HD
When
transsit ting in
DIRECT
,
dot o is
not
displayed
unless an
echo
condition is
in
effect
ENTER
or
SEND
When
fransaitt ing from the
BUFFER
,
sat a
is
displayed
before
Irons
m ission to
allow
editing and
torn
fi ll
- out
operations I
COMPUTER ECHO
LOCAL ECHO
BUFFER
DIRECT
WAIT
KEYBOARD
LOCK
LOCAL ON LINE ON OFF
ON
OFF
DIRECT
BUFFEA
POWER
1 2
PAGE
ERASE
INPUT
our
US
BACK
SPACE
REBET
ERASE
10
ENO
COPY
ESC
A
W E
Y
U
RETURN
INS
INSC
DEL
DEL
C
TAS CTRL
A
S
D
F G
H
JK
L
OUT
HOME
TIY
LOCK
SHIFT
Z
X
V
N
M
SHIFT
BREAK
SENO
ENTER
NUM
LOCK
Fig .
1-3
1-5

4023 Users
INTRODUCTION
RECEIVING
COMPUTER
.
The
4023’s
receiving
operation
consist s
basically
of
writ ing charact ers , drawing form s ( if the Term inal is
equipped
with the
opt ional
rulings
charact ers
) ,
or
execut ing
cont rol
com m ands
.
Dat a
from the
com put er
passes
through the
Interface
and is applied
to the
Term inal Control
circuit s
. The
data is
int erpreted eit her as
writ ing
charact ers or
com m and
charact ers .
Writi ng
charact ers are
then
displayed on the
screen as
eit her
alphanum eric or form s
charact ers
, as
select ed by com put er or keyboard com m and . Com m and
charact ers are
execut ed by
the
Term inal
.
Dat a can also
be
accepted
from
or
by
auxiliary
devices .
tadocd
.....
.....
+

I 
* + ;
OD
62
AUXILIARY
DEVICES
OOD
OOO
...
Dat a
From
Com put er Character
writ ing is the
grincipal
receiving
operation of the
4023
The 4823
con
display
inforzat ion on 24
lines with
se
charact ers each .
The
rect angular sym bol at
the end
of this
paragrach is the
cursor
indicat es
where the
next
charact er 38 to be
writ ten
WAIT
KEYBOARD
LOCK
LOCAL ON LINE
ON OFF
ON
OFF DIRECT
BUFFER POWER
3 2
PAGE
ERASE
INAT
E 3
Se
20
m n
BACK
OPACE
RESET
ERASE
TO
END
COPY
ESC
w E
R
T
Y
d
RETURN
INS
INSC
DELL
DEL
TAB
UTRE
A
S
H
K
RUS
OUT
HOME
ITY
LOCK
SHIFT
2
X
V
B
N
M
SNIE
.
BREAK
SENO
ENTER
NUM
LOCK
Fig
.
1-4
1-6

4023 Users
INTRODUCTION
LOCAL OPERATION
COMPUTER
V
In Local Operat ion the 4023 is
isolat ed
from
the
com put er
.
Key
board input s
are
displayed
or
ot her
wise execut ed by the Term inal . The
Term inal can
int eract with
auxiliary
devices while in Local .
MODE
MMT IT
HADOUDOUDO
AUXILIARY
DEVICES
DOO
DOO
HOOG
1.0

ENTER or SEND
Local
operation
is used
for
operator
training
,
Terainal
repair
and when
using the
4823 with
ouxiliary
devices
independent
of
the
coaput er
READ From Aux Device
LOCAL
ECHO
BUFFER
WAIT
KEYBOARD
LOCK LOCAL
ON LINE ON OFF
ON OFF
DIRECT BUFFER
POWER
1
2
PAGE
FRASE
INPUT
E
012
BACK
SPACE
RESET
ERASE
10
END
COPY
www
ESC
W
E
R
Y
U
RETURN
INS
INSC
DEL
DEL
13
128
CTRL
A
6
j
K
RUR
DUT
MONE
M
LOCK
SHIRT
X
V
8
INM
SRL
BRUAR
SEND
ENTER
NUN
LOCK
Fig .
1-5
A
1-7

4023 Users
INTRODUCTION
HARD COPY OPERATION
/ /
78
303
303963
ce
TEK
TRONIX
42
TEKTRONIX
A Hard Copy Unit can produce a
perm anent
copy
of a
Term inal
display
in
response to
a

m ak e
copy
"
com m and
from
the
com
puter ,
keyboard ,
Hard
Copy
Unit
,
or
from auxiliary
devices
.
Fig .
1-6
1-8
A

4023 Users
CONTROLS
SECTION
1
PART 2
THE CONTROLS
General
As a Term inal operator , underst anding the Term inal cont rols is an
im port ant part of your job . Of course , if you are not fam iliar with com put er
t erm inals , the purpose and usage of som e of the cont rols m ay be unfam i liar
at fi rst . But , as you use the Term inal your underst anding of Term inal
cont rols
and
operation
will
increase
proportionately
.
NOTE
Because of the variety of syst em s , the purposes of som e cont rols
will
vary
from
system to
system
.
Purpose
of
Controls
Even though the Term inal Keyboard looks like a typewriter keyboard , its
use is qui te different . Typewriter keys and cont rols provide a convenient
m eans of writ ing , with functions designed toward output t ing print ed
m at erial on a piece of paper . The Term inal keyboard and cont rols are
designed to
m anipulat e
com put er
- based data
. THE
KEYBOARD’S
PRIMARY FUNCTION IS TO ACT AS A SOURCE OF DATA FOR THE
COMPUTER . The screen ( or display - bot h words are used int erchangeably
throughout this m anual ) is a convenient m eans of recording , for operator
convenience , the Term inal / com put er conversat ion . Edit ing functions and
display form att ing are sim ply Term inal features that provide m ore efficient
Term inal / com put er com m unicat ions . So , even though for m ost operations
the keyboard appears to be " talking " with only the screen , the result ( or end
result ) of keyboard data m anipulat ion is direct ed toward the com put er .
Keeping this in m ind will help to bett er underst and the use of the cont rols .
1-9

CONTROLS
4023 Users
Term inal Controls can be divided int o three basic groups ; the Term inal
Controls and Indicat ors , the Keyboard , and the Funct ion Controls . A brief
explanation of each group is provided in Fig . 1-7 .
Purpose
of
Controls
( cont . )
By underst anding
a few
sim ple
com m ands and the
correct form at , the
operator
at the
Term inal
runs program s
that
have already
been
stored in the
com put er
. The
keyboard
enables
you to
" consult
" with
your "
assist ant  the
com put er ;
telling it what
to do and
when to do
it . As the
com put er
receives
each inst ruction it " talks back " to you via the display .
Wit h a
typewriter
typing on
paper
, you
can tell
where the
next
charact er
will be typed
by the
m echanical
posit ion of the
carriage
. Wit h the
Term inal
display ,
there is no
m echanical
relationship
. To
show where
the next
charact er
is to be writ ten rect angular m arker , called a cursor , is provided .
is to be writ ten a rect angular m arker , called a cursor , is provided .
1-10
( A