printer for you and all you have to know about the printer is how to turn it on and how to load paper. If you need help with the installation program for your software, see Appendix E.

Running BASIC Programs

This section describes how to run the BASIC demonstration programs in this manual; it is not a tutorial in BASIC programming.

Although there are many versions of BASIC, the programs in this manual are designed to work with the two most popular ones: Micro- soft BASIC and IBM@ PC BASIC. If you have another version, you can run these demonstration programs by making a few changes. Appendix D has instructions for using Applesoft’” BASIC; for other versions of BASIC, consult the appropriate manual.

When you type these programs, be sure to include all spaces and punctuation marks, especially semicolons. Press RETURN at the end of each line. (On your computer the RETURN key may be marked or ENTER.) Computers that use a 40-column display may break some lines into two parts on the screen, but that does not affect the operation of the program. If you make a typing mistake, retype the whole line, including the line number; the new line will replace the old one.

When you have typed all the lines, type RUN and press RETURN to run the program.

If you have made changes to a program and want to see all of it on the screen, type LIST and then press RETURN to see the program on your screen. When you are completely through with one program and want to start another, type NEW and press RETURN.

In Chapter 3 you saw the enlargements of the three LX-90 pitches. Now you’ll learn how to produce them.

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