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PLATOTerm 0.1 Alpha

What is PLATOTerm?

PLATOTerm is a terminal emulator for your Atari ST to access CYBIS services now available
on the Internet utilizing a WIFI Modem, or (soon!) an Ethernet device
supported by STiNG.

For the purposes of this documentation. PLATO and CYBIS are interchangeable
names for the same platform.

What services are currently available to access via PLATOTerm?

As of writing this preliminary documentation (September 2018), there are
two major CYBIS systems running. CYBER1.ORG and IRATA.ONLINE.

WHAT IS PLATO? (aka CYBIS?)

(from the PLATO wikipedia page:)

PLATO (Programmed Logic for Automatic Teaching Operations), was the first
generalized computer-asisted instruction system. Starting in 1960, it ran
on the University of Illinois ILLIAC I computer. By the late 1970s, it
supported several thousand graphics terminals distributed worldwide, running
on nearly a dozen different networked mainframe computers. Many modern
concepts in multi-user computing were originally developed on PLATO, including
forums, message boards, online testing, e-mail, chat rooms, picture languages,
instant messaging, remote screen sharing, and multi-player games.

What is CYBER1.ORG?

CYBER1.ORG is a CYBIS system initially set up in 2004, as a haven for
ex-PLATO users to experience a classic PLATO author experience.

CYBER1.ORG is home to many thousands of classic PLATO lessons and
notesfiles which have been restored from various sources, and have
been made available in the interests of preserving PLATO.

What is IRATA.ONLINE?

IRATA.ONLINE is a CYBIS system that has been set up for the benefit of
the greater vintage computing community, in the interest to provide
a unique experience that can be accessed on a wide variety of
vintage computers with a bitmapped graphics display. To this end,
IRATA.ONLINE develops PLATOTerm for dozens of platforms, so that they
can access CYBIS systems, as well as provide a community and learning
infrastructure for vintage computing users of all types, in the hopes
that as a cohesive community, something unique can hopefully
emerge.

What is the connection between IRATA.ONLINE and CYBER1.ORG?

CYBER1.ORG and IRATA.ONLINE are independent of one another. With that said,
the reason IRATA.ONLINE and PLATOTerm exist, are because of the efforts of
CYBER1.ORG to not only preserve a running PLATO system, and provide the
necessary information for interested parties to write terminal software
to access CYBIS systems, but also in their effort to produce a publically
available distribution of CYBIS that others who are interested may also
run their own CYBIS installation. IRATA.ONLINE is a direct result of the
public release of this distribution.

What do I need to run PLATOTerm and connect to CYBIS?

  • An Atari ST or compatible machine

This version of PLATOTerm is intended to run on vintage Atari ST or compatible
systems running TOS or MiNT. Modern PC systems can run the PTERM program, which
is available from http://cyber1.org/pterm.asp

  • A WIFI modem or equivalent device attached to your RS232 port

PLATOTerm currently uses your default RS-232 port to communicate with devices like WIFI modems, which emulate traditional analogue modems, while bridging to TCP/IP services.

Video mode support

The following video modes will be shown in full screen:

  • ST Low - 320x200 with 16 colors
  • ST Medium - 640x200 with 4 colors
  • ST High - 640x400 with 2 colors (mono)
  • TT Medium - 640x480 with 16 colors

Any other mode (such as TT High) will be shown as a window on screen.

Starting PLATOTerm

PLATOTerm can be started by starting PLATO.PRG

DTR will be raised, upon starting the program.

Exiting PLATOTerm

PLATOTerm can be exited, by pressing ALT-X. DTR will be lowered on exit.

PLATOTerm Setup

Pressing F1 at any time will bring up the Setup menu, allowing you to set
communication parameters:

image

Tip: Once you have set the appropriate communications parameters, type
an AT and press enter, to ensure that the modem is working correctly.

Using PLATOTerm

When PLATOTerm starts, you will see the following message:

PLATOTerm ST READY

At this point, the terminal has opened a connection to the modem and
your modem should be able to accept commands, provided that your
communication parameters are set correctly.

PLATOTerm starts in TTY mode. In this mode, characters are passed directly
to the modem, and only plain ASCII is received and displayed.

Typically, you will "dial" into the desired CYBIS system, with a command
such as:

ATDTCYBERSERV.ORG:8005

for CYBER1.ORG, or:

ATDTIRATA.ONLINE:8005

for IRATA.ONLINE.

Once PLATOTerm has received a PLATO mode command (ESC STX), the terminal
will change to PLATO mode, and interpret subsequent data as PLATO mode
and command data.


Disconnecting

Press ALT-H to disconnect.


PLATO Keyboard

PLATO terminals had a lot of very special keys, which must be mapped to
equivalent keys on a PC keyboard. The following table shows the
PLATO and equivent PC keys:

PLATO PC
ANS CTRL-A
BACK CTRL-B
BACK1 CTRL-SHIFT-B
COPY CTRL-C
COPY1 CTRL-SHIFT-C
DATA CTRL-D
DATA1 CTRL-SHIFT-D
EDIT CTRL-E
EDIT1 CTRL-SHIFT-E
FONT CTRL-F
DIVIDE CTRL-G
HELP CTRL-H
HELP1 CTRL-SHIFT-H
LAB CTRL-L
LAB1 CTRL-SHIFT-L
MICRO CTRL-M
NEXT ENTER
NEXT1 SHIFT-ENTER
SUPER CTRL-P
SUPER1 CTRL-SHIFT-P
SQUARE CTRL-Q
ACCESS CTRL-SHIFT-Q
ERASE CTRL-R
ERASE1 CTRL-SHIFT-R
STOP CTRL-S
STOP1 CTRL-SHIFT-S
TERM CTRL-T
MULTIPLY CTRL-X
SUB CTRL-Y
SUB1 CTRL-SHIFT-Y
SIGMA CTRL-+
DELTA CTRL--
ASSIGN ESC

System Keys

F1 - Setup
ALT-X - Exit PLATOTerm
ALT-H - Hang Up


Further information

Should you need further information, updates, etc. You can check:

Don't forget to check out http://www.cyber1.org/

The author can be reached on IRATA.ONLINE as thomas cherryhomes / atari