B. The three windows of the Listener

The space you see when logged onto BioBIKE is partioned into three windows:

• The Program Window (or Expression Entry Box) - The large box at the bottom of the screen
• The Command Window (or Command Entry Box) - The long thin box in the middle of the screen
• The History window (or Output Area) - The large space above the command window

The program and command windows are used to enter BioBIKE statements, while the history window shows you what you have done and enables you to retrieve earlier statements.

B.1. Entering code in the command and program windows

These two windows are almost functionally equivalent. The small differences there are serve to make it easier to enter multiline statements in the program window. Try entering this into the Command Window (including parentheses!):

(DISPLAY-SEQUENCE-OF ssr1600)

Then press the Enter key on your keyboard or click on the Enter button on the screen. You should see in the History Window the sequence of the gene ssr1600. (By the way, don't be concerned about upper case/lower case distinctions; they're there only for clarity to humans -- BioBIKE doesn't care).

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