[comp.sys.cbm] Deaf Users-Cassettes

gene@uicsl.csl.uiuc.edu (06/16/88)

Less avid Commodore 64/128 users might still be interested in using cassettes;
In my case, I have a practical need for 3 or 4 C-64 systems; We have a deaf
person in the family, and the need for 3 or 4 family-members to be able to 
conveniently communicate with him via modem.  Since this is their primary
interest, LOW-COST, low-complication is their main concern. Altho the terminal
program "64-TERM" is satisfactory,  I like "PLUS/TERM" which I copied out of 
COMPUTE! magazine...Feb or Mar '85, I believe.   It has a 30k buffer that can
be used to capture the conversation and can be viewed at will (or can be printed
out if the budget permits a printer).  The buffer can also be used to compose 
a lengthy text before you telephone, and then when phone contact is established,
dump it onto the phone-line and hang up (if you want to save phone-time); after
a few minutes, you can re-establish phone contact and use keyboard-to keyboard
to continue conversation, or he can compose a long reply and "dump" it back to 
you and hang up...etc etc.   By the way, we use the surplus "Total Communications"
modems ($19..300-baud), altho they are probably no longer available. If you have
one laying around, you may need to use some contact-cleaner and scrub the con-
nector pins since they tend to get oxidized.  We ignore all the complicated
options that come with it, and simply hand-dial (or tone) the number, and plug
in the phone line into a "tee" when we hear a tone, or when we think the other
end is ready to plug their phone line in.  The older Commodore 1600 300-baud modem is
currently being advertised in Computes! Gazette for $19 (somewhere in FLA),
altho it is probably not as convenient (uses handset plug instead of regular
phone-line receptacle, as I recall). 
   ANYWAY, the thought that prompted this message was that one portion of  
PLUS/TERM is machine language, and if you're copying from Disk-to-Cassette, the
usual methods don't work!  Some experts on this net will probably respond with
some simpler tricks, but the only thing that worked for me, was to first load 
in a M.L.X. program from Disk (I used a version 2 or 3 yrs old which gives the 
option of SAVEing to Tape...perhaps the later versions do also?) and typed in
the beginning & ending addresses...given in the magazine article, then do a
contr/L to load in the "PLUS/TERM.ML" program from "D"isk, then SAVE it to TAPE;
  FIRST, however, I forgot to mention that you should SAVE "SCREEN-80" first
on the tape (if you have a monitor capable of viewing 80 columns), then second
SAVE "PLUS/TERM".  For 40-column display, you can eliminate "SCREEN-80", or 
simply fast-forward over it and do LOAD "PLUS/TERM".  By the way, if you are 
copying "PLUS/TERM",8 from a disk, don't forget to change one of the line numbers
from an 8 to a 1, as described in magazine-text, before you save it to tape.
   If you DO use "SCREEN-80", after it loads you RUN it, then type NEW before
continuing on to LOAD "PLUS/TERM" which you RUN. (It will then automatically
load the machine-language from its program if you leave your "PLAY" button
down).