If you place that piece of paper on any page in this book, it will cover up all but a small portion of the page. Yet by moving that window horizontally and vertically, you can bring any desired portion of the page into view:

Moving the window does not change what’s on the page. It just changes what’s in the window. The text on the page is still there, whether you can see it or not.

In addition to letting you view any desired portion of the virtual screen, the screen editor will let you place words, numbers and character graphics on the virtual screen, and make it easy for you to insert and delete text at any point.

Turn on your HX-20 now and select BASIC from the menu. You won’t actually learn any BASIC programming in the following pages, but you must enter BASIC in order to learn how to use the screen editor.

The cursor

When you select BASIC from the menu, a message will appear on the screen. For now, ignore that message.

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