And if everything does work? Your computer will beep when it’s through or at least flash a message letting you know that it’s done.

Note: If the other person is using some versions of MODEM7, you may have to ask him to switch on the “check sum” form of error checking. This guide is for the simple old MODEM7, not newer versions. Most of the commands, however, will also work with the updated varieties, and of course all versions of MODEM7 can communicate with each other, subject to minor adjustments. Some versions use the TCC command to turn on the check-sum mode.

TO RECEIVE FROM SOMEONE WITH A MODEM7-STYLE PROGRAM

1. Fire up your modem.

2. Type R B:[new file name].

3. Hit your return.

Your computer will tell you when it’s through receiving. Remember, the material will show up on your data disk. If you want the material on the other disk, just type R A:[file name] instead.

TO FIND OUT IN A HURRY IF YOUR COMPUTER SAVED A FILE SENT BY MODEM (ASSUMING YOU’RE USING AN OPERATING SYSTEM LIKE CP/M OR PC-DOS)

1. Go to the A> prompt.

2. Type the word TYPE, then a space, then the name of the file—preceded by a B:, of course, if it’s on the data disk.