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.KJOB
ECHO is what happens when you type a character on the terminal.
The character is "echoed" to your output (screen or paper).
********************************************************
* *
* Advertisement for the program ECHO - *
* See Description at end of this Help file *
* *
********************************************************
The DECsystem-10 operates in a "FULL DUPLEX" mode, which means that
characters can go from you and to you at the same time. That's how
you are able to
1. type ahead while typing is still coming at you
2. type ^O to stop and start output
3. type ^C^C to abort the currently running program
IF you type
TTY NO ECHO
you will silence the DECsystem-10 echo of the characters you type.
IF you get ddoouubbllee characters on your terminal, you can either:
1. switch your equipment to FULL DUPLEX (best solution)
or 2. give the TTY NO ECHO command
IF you dial-up and get no characters when you type, then the previous
user of the phone line must have set TTY NO ECHO. To correct that,
and other weird settings he may have made, give the INITIA command
by just typing
I (followed by hitting the RETURN key)
at the beginning of the line. That will reset the TTY setting to normal.
Another good help file to see is:
HELP TTY
==========================================================================
ECHO - A program to eecchhoo characters
Have you ever wondered what all those fancy 'extra' keys did on
your terminal? Well, wonder no more. ECHO is a program that will actually
send back to your terminal the characters these keys transmit, instead of
just sending them to the computer.
ECHO has 2 modes of operation: It will either send the actual character
to your terminal, or echo back the representation of that character. Here's an
example: In the first mode, (end mode - echo back the character) hitting the
COTROL-T key combination will send an actual Control-T to your terminal. An
alternate way to accomplish this would be to set some switches to LOCAL or HALF
DUPLEX (some switches are hard to get to) and pulling out your terminal's
manual to see what's going on (some manuals are confusing, to say the least).
In the second mode (Display mode - echo back the name of the key hit)
hitting the CONTROL-T combination echoes back as " CONTROL-T(024) ", informing
you that CONTROL-T was transmitted, and (024) being the octal representaion of
Control-T. Note that in this mode, a control-T is NOT sent to your Terminal.
Some 'special' keys transmit nothing to the computer, and are local
to your terminal. ECHO cannot intercept these commands. To startup the ECHO
program, type at monitor level:
.R ECHO
Display character name (D) or send it (S) ? [S]:
You now enter an S or a D, for the mode you want to operate in. note that ALL
characters are legal, AND TWO (2) CONTROL-C's IN SUCCESSION ARE NEEDED TO EXIT
THE PROGRAM ! ---------------------------------------------------------
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[End of Both ECHO's HELP]
.KJOB
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