Radio Shack TRS-80 Model 100 Basic Manual page 175

The last line indicates the Function Key commands available in the Terminal Mode.
Function Key
~
now contains a function that allows you to see the "Previous"
screen.
Function Key CE2) now contains a feature for Downloading or receiving
information from another computer.
Function Key
~
now contains a feature for Uploading or sending information
to another computer.
Function Key (B) has now become a FulllHalf duplex toggle switch. In Full
duplex any character that you type on the Model 100's keyboard is first sent to
the host computer before it appears on the display. In Half duplex, on the other
hand, charal:ters appear on the display just as they are sent to the host.
Function Key
~,
which is not displayed along with the other functions, offers
an "Echo" feature which lets you obtain a "hard copy" of whatever is being
received (assuming there is a printer connected to the Model 100). Once
~
has
been pressed, it will appear displayed each time you access the Terminal Mode
of TELCOM.
Function Key
~,
Bye, lets you exit the Terminal Mode.
7. Now that the computers are connected with matching communication parameters,
decide on a file with the extension .00 that you wish to send and press (f3), the
Upload Function Key. The prompt:
File to Upload?
I
will be displayed.
8. Enter the name of the file to be transferred. The prompt
Width:
will appear. Enter a number between 10 and 132 to format the file as it is sent
out. If you simply press CENTER), the file will be sent "as is."
The word Upon the last line of the display will appear in reMerse as the file is being
Uploaded. The word will return to normal display when file transfer is complete. If
the other computer sends an XOFF command, transmission will pause and the word
Wait will appear on the bottom line of the display. If the other computer then sends an
XON command to proceed, the word Wait disappears.
Note: A BASIC program may be transferred if it has been saved in ASCII, but it
cannot
be
transferred as a .BA file. If you attempt to transfer a .BA file, the error
message
NO FILE
Upload aborted
will be displayed. If you specify a filename which does not exist, the same error
message appears.
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